Zion Tech Group

Tag: Cooling

  • Gigabyte GeForce RTX 4090 WINDFORCE V2 24GB Graphics Card – 24GB DDR6X, PCI-E 4.0, Core 2520Mhz, 3 Fan Windforce Cooling System, Anti-sag Bracket, DP 1.4, HDMI 2.1a, NVIDIA DLSS 3, GV-N4090WF3V2-24GD

    Gigabyte GeForce RTX 4090 WINDFORCE V2 24GB Graphics Card – 24GB DDR6X, PCI-E 4.0, Core 2520Mhz, 3 Fan Windforce Cooling System, Anti-sag Bracket, DP 1.4, HDMI 2.1a, NVIDIA DLSS 3, GV-N4090WF3V2-24GD


    Price: $2,399.00
    (as of Nov 23,2024 21:27:21 UTC – Details)



    The NVIDIA® GeForce RTX 4090 is the ultimate GeForce GPU. It brings an enormous leap in performance, efficiency, and AI-powered graphics. Experience ultra-high performance gaming, incredibly detailed virtual worlds, unprecedented productivity, and new ways to create. It’s powered by the NVIDIA Ada Lovelace architecture and comes with 24 GB of G6X memory to deliver the ultimate experience for gamers and creators.
    Supported Technologies: Supporting DLSS 3, DLSS 2, Ray Tracing, NVIDIA Reflex, GeForce Experience & All NVIDIA Studio applications
    Core & Clocks: 2520MHz Boost Clock, 16384 CUDA Cores, 24GB GDDR6X Memory, 384-bit Memory Bus, 21Gbps Memory Speed
    Cooling: The WINDFORCE cooling system features three 100mm unique alternately spinning 3D active blade fans with 9 composite copper heat pipes, which directly touch the GPU and screen cooling to provide high efficiency heat dissipation.
    I/O & Connectivity: PCIE 4.0, 3 x DisplayPort 1.4a, 1 x HDMI 2.1a, DirectX 12 Ultimate, OpenGL 4.6
    Recommended Power Supply: 850W


    Introducing the Gigabyte GeForce RTX 4090 WINDFORCE V2 24GB Graphics Card – the ultimate powerhouse for all your gaming and creative needs! With 24GB of DDR6X memory, PCI-E 4.0 support, a core clock speed of 2520Mhz, and NVIDIA DLSS 3 technology, you can experience unparalleled performance and stunning visuals like never before.

    Equipped with a 3 Fan Windforce Cooling System and an anti-sag bracket, this graphics card ensures optimal cooling and stability during intense gaming sessions. The DP 1.4 and HDMI 2.1a ports allow for seamless connectivity to your display, while the advanced features like ray tracing and AI-powered upscaling deliver a truly immersive gaming experience.

    Upgrade your rig with the Gigabyte GeForce RTX 4090 WINDFORCE V2 24GB Graphics Card and take your gaming to the next level. Don’t miss out on this cutting-edge technology – get yours today! #Gigabyte #RTX4090 #WINDFORCEV2 #GraphicsCard
    #Gigabyte #GeForce #RTX #WINDFORCE #24GB #Graphics #Card #24GB #DDR6X #PCIE #Core #2520Mhz #Fan #Windforce #Cooling #System #Antisag #Bracket #HDMI #2.1a #NVIDIA #DLSS #GVN4090WF3V224GD

  • Spindle Motor 220V 2.2 KW 24000RPM Φ80mm 3 Bearings Water Cooling ER20 Huanyang

    Spindle Motor 220V 2.2 KW 24000RPM Φ80mm 3 Bearings Water Cooling ER20 Huanyang



    Spindle Motor 220V 2.2 KW 24000RPM Φ80mm 3 Bearings Water Cooling ER20 Huanyang

    Price : 155.00

    Ends on : N/A

    View on eBay
    Are you in need of a reliable spindle motor for your machining needs? Look no further than the Spindle Motor 220V 2.2 KW 24000RPM Φ80mm with 3 Bearings, Water Cooling, and ER20 Huanyang. This high-quality motor is designed to provide powerful and precise performance for a wide range of applications.

    With a voltage of 220V and a power output of 2.2 KW, this spindle motor is capable of reaching speeds of up to 24000 RPM. The Φ80mm diameter and 3 bearings ensure smooth and stable operation, while the water cooling system helps to prevent overheating during long machining sessions.

    Equipped with an ER20 collet chuck, this spindle motor is compatible with a variety of tool sizes, making it versatile and easy to use. Whether you are working on wood, metal, or any other material, this motor is sure to meet your needs.

    Don’t settle for subpar performance – invest in the Spindle Motor 220V 2.2 KW 24000RPM Φ80mm with 3 Bearings, Water Cooling, and ER20 Huanyang for all your machining needs. Order yours today and experience the difference in quality and efficiency.
    #Spindle #Motor #220V #24000RPM #Φ80mm #Bearings #Water #Cooling #ER20 #Huanyang

  • Cooling System in Submerged Data Centers: A Step-by-Step Guide by Charles Nehme

    Cooling System in Submerged Data Centers: A Step-by-Step Guide by Charles Nehme



    Cooling System in Submerged Data Centers: A Step-by-Step Guide by Charles Nehme

    Price : 37.17

    Ends on : N/A

    View on eBay
    Cooling System in Submerged Data Centers: A Step-By-Step Guide by Charles Nehme

    Submerged data centers have been gaining popularity in recent years due to their energy efficiency and cost-saving benefits. One crucial aspect of submerged data centers is the cooling system, which plays a vital role in maintaining optimal temperatures for the servers and other equipment.

    In this step-by-step guide, Charles Nehme will walk you through the process of setting up a cooling system in a submerged data center:

    Step 1: Determine the cooling requirements
    Before setting up the cooling system, it is essential to determine the cooling requirements of your submerged data center. This includes calculating the heat load generated by the servers and other equipment, as well as considering the ambient temperature and humidity levels of the surrounding environment.

    Step 2: Choose the appropriate cooling technology
    There are several cooling technologies available for submerged data centers, including direct liquid cooling, indirect liquid cooling, and immersion cooling. Each technology has its advantages and disadvantages, so it is crucial to choose the one that best suits your specific needs and requirements.

    Step 3: Design the cooling system layout
    Once you have chosen the appropriate cooling technology, it is time to design the layout of the cooling system. This includes determining the placement of the cooling units, pumps, and piping to ensure efficient heat dissipation and circulation of the cooling fluid.

    Step 4: Install the cooling system components
    After designing the layout, the next step is to install the cooling system components, including the cooling units, pumps, and piping. It is essential to follow the manufacturer’s instructions carefully and ensure that all components are installed correctly to prevent any potential issues or malfunctions.

    Step 5: Monitor and maintain the cooling system
    Once the cooling system is up and running, it is crucial to regularly monitor and maintain it to ensure optimal performance. This includes checking for any leaks, monitoring the temperature and pressure levels, and performing routine maintenance tasks as recommended by the manufacturer.

    By following this step-by-step guide, you can set up an efficient and reliable cooling system in your submerged data center, ensuring the optimal performance and longevity of your servers and other equipment. Charles Nehme’s expertise in data center cooling systems makes him the perfect guide for this important process.
    #Cooling #System #Submerged #Data #Centers #StepbyStep #Guide #Charles #Nehme

  • How Data Center Cooling Impacts Performance and Reliability

    How Data Center Cooling Impacts Performance and Reliability


    Data centers play a crucial role in today’s digital age, serving as the backbone for countless online services and applications. However, ensuring optimal performance and reliability in a data center is not just about investing in state-of-the-art servers and storage solutions. One often-overlooked aspect that can significantly impact data center performance and reliability is cooling.

    Data center cooling is essential for maintaining the optimal operating temperature of servers and other equipment. When servers run too hot, they can experience thermal throttling, which reduces their processing power and can lead to performance degradation. In extreme cases, overheating can even cause hardware failures, resulting in costly downtime and data loss.

    Proper cooling is also crucial for ensuring the reliability of data center equipment. Excessive heat can shorten the lifespan of servers and other components, leading to more frequent hardware failures and the need for costly replacements. By maintaining the right temperature and humidity levels, data center cooling systems can help extend the life of equipment and reduce the risk of unexpected downtime.

    There are several different approaches to data center cooling, each with its own benefits and drawbacks. Traditional air-cooling systems rely on cooling fans and air conditioning units to maintain the desired temperature. While relatively simple and cost-effective, air cooling can be less energy-efficient and less effective at removing heat from densely packed server racks.

    Liquid cooling systems, on the other hand, use water or other liquids to absorb and dissipate heat from servers. Liquid cooling can be more energy-efficient and effective at managing high-density server environments, but it also requires more complex infrastructure and maintenance.

    Another emerging trend in data center cooling is the use of free cooling, which relies on ambient air temperature to cool servers instead of traditional air conditioning units. Free cooling can be more cost-effective and environmentally friendly, but it may not be suitable for all climates or data center configurations.

    Ultimately, the choice of cooling system will depend on factors such as the size and layout of the data center, the heat load generated by servers, and budget constraints. Regardless of the approach taken, data center operators must prioritize cooling to ensure optimal performance and reliability.

    In conclusion, data center cooling is a critical factor in maintaining the performance and reliability of mission-critical IT infrastructure. By investing in the right cooling systems and practices, data center operators can minimize the risk of downtime, extend the lifespan of equipment, and ensure the smooth operation of their facilities.

  • VTRETU Quiet USB Interface Cooling Fan,Used for Router Rack DIY Audio Video Network Cabinet Server Cooling Project and Equipment Workstation Xbox PS5 Cooling Accessories(360 * 120 * 25mm

    VTRETU Quiet USB Interface Cooling Fan,Used for Router Rack DIY Audio Video Network Cabinet Server Cooling Project and Equipment Workstation Xbox PS5 Cooling Accessories(360 * 120 * 25mm


    Price: $31.99 – $23.35
    (as of Nov 23,2024 07:16:53 UTC – Details)


    colling fan
    Product Dimensions ‏ : ‎ 14 x 4.7 x 1.9 inches; 0.32 ounces
    Date First Available ‏ : ‎ June 29, 2022
    Manufacturer ‏ : ‎ VTRETU
    ASIN ‏ : ‎ B0B5DJ6KF7
    Country of Origin ‏ : ‎ China

    【better after-use experience】 Temperature reduction provides an expected longevity extension and higher performance of a critical network component,These fans are overall very helpful for devices that get a bit hot and start to throttle down.
    【choice of most users】It works great ,for DIY cooling fan or as an additional cooling ,fan for your gaming needs. like as router, cabinet, Modem, DVR, Receiver, Streaming ,boxes, x-box, SSD, Security Camera NVR, andriod box, stereo, T-Mobile gateway. Good balance of quiet and airflow. keeping electronics cool .Three specifications of fans, suitable for more usage scenarios .
    【Custom shock absorbing feet】 four feet using environmentally friendly rubber, after testing, the softness of the feet that can smoothly grab the desktop, not too hard and desktop resonance .
    【Fan parameters】Connecter: USB; Cable Length: 55cm Or 21 inches; Bearing type: Sleeve ; Life: 35000 hours / Dimension: 360mm(L) x 120mm(W) x 25mm(H) / 4.7×4.7×1 in. per fan; Rated Voltage:5V 0.2A; Speed: 1500RPM; Air flow: 56.7CFM; Noise:23dBA .
    【Warranty & Packing List】Warranty: One-year quality assurance. Please contact us, If the product has any quality problems, it will be refunded within 90 days or replaced within one year | Packing list: A finished product .

    Customers say

    Customers like the functionality and heat retention of the electronic component fan. They mention it works perfectly and keeps their PS5 cooled down. However, some customers have reported that the noise level has dropped and the fan makes some noise and turbulence. Opinions are mixed on the airflow.

    AI-generated from the text of customer reviews

    Introducing the VTRETU Quiet USB Interface Cooling Fan!

    Are you looking for a reliable and efficient cooling solution for your router rack, DIY audio video network cabinet, server cooling project, or equipment workstation? Look no further than the VTRETU USB Interface Cooling Fan.

    This fan measures 360 120 25mm, making it the perfect size for a variety of cooling applications. With a quiet operation, you can keep your equipment running smoothly without any distracting noise.

    Whether you’re looking to improve airflow for your Xbox, PS5, or other devices, this cooling fan is the perfect accessory. Say goodbye to overheating and hello to optimal performance with the VTRETU Quiet USB Interface Cooling Fan.

    Don’t wait any longer to keep your equipment cool and running efficiently. Get your hands on the VTRETU Cooling Fan today!

    CoolingFan #VTRETU #USBInterface #QuietOperation #EfficientCooling #TechAccessories

    #VTRETU #Quiet #USB #Interface #Cooling #FanUsed #Router #Rack #DIY #Audio #Video #Network #Cabinet #Server #Cooling #Project #Equipment #Workstation #Xbox #PS5 #Cooling #Accessories360 #25mm

  • maxsun GEFORCE GT 1030 4GB GDDR4 Video Graphics Card GPU Mini ITX Design, HDMI, DVI-D, Single Fan Cooling System

    maxsun GEFORCE GT 1030 4GB GDDR4 Video Graphics Card GPU Mini ITX Design, HDMI, DVI-D, Single Fan Cooling System


    Price: $84.99
    (as of Nov 23,2024 06:32:34 UTC – Details)


    external graphics card
    Chipset: Nvidia Geforce GT 1030, Silver plated PCB & all solid capacitors provide lower temperature, higher efficiency & stability
    3.5in unique fan provide low noise and huge airflow For your GPU
    ITX form factor size perfect in any case
    GPU Boost Clock / Memory Speed : up to 1380 MHz / 4GB GDDR4 / 2100 MHz Memory
    Support Nvidia Technology, avoid using unofficial software.

    Customers say

    Customers like the functionality, value for money, and graphics quality of the video card. They mention it works well, is a great buy, and provides crystal clear images. However, some customers disagree on its performance.

    AI-generated from the text of customer reviews


    Introducing the maxsun GEFORCE GT 1030 4GB GDDR4 Video Graphics Card GPU with Mini ITX Design! This powerful graphics card is perfect for gaming, video editing, and more. With HDMI and DVI-D outputs, you can easily connect to your favorite monitors and displays.

    The single fan cooling system ensures that your GPU stays cool and quiet, even during intense gaming sessions. Plus, with 4GB of GDDR4 memory, you’ll have plenty of power for all your graphics-intensive tasks.

    Upgrade your system with the maxsun GEFORCE GT 1030 and experience stunning visuals and smooth performance like never before. Get yours today and take your gaming to the next level!
    #maxsun #GEFORCE #4GB #GDDR4 #Video #Graphics #Card #GPU #Mini #ITX #Design #HDMI #DVID #Single #Fan #Cooling #System

  • The Cost of Inefficient Data Center Cooling

    The Cost of Inefficient Data Center Cooling


    Data centers are the backbone of the digital world, housing the servers and networking equipment that power our everyday online activities. However, one critical aspect of data center operations that is often overlooked is cooling. Without proper cooling systems in place, data centers can quickly become hot, inefficient, and costly to run.

    The cost of inefficient data center cooling can be staggering. Not only does excessive heat put a strain on servers and other equipment, leading to decreased performance and potential hardware failures, but it also drives up energy costs. In fact, cooling can account for up to 40% of a data center’s total energy consumption.

    One of the biggest culprits of inefficient cooling is poor airflow management. When hot and cold air mix within a data center, it creates hot spots that can lead to equipment overheating. This not only reduces the lifespan of the hardware but also requires more cooling to maintain optimal temperatures. In addition, outdated cooling systems can be energy hogs, consuming more power than necessary to keep equipment cool.

    To combat the high costs of inefficient data center cooling, organizations can take several steps to improve efficiency. One of the most effective ways is to implement a containment system that separates hot and cold air within the data center. By creating a closed loop airflow system, data centers can reduce the mixing of hot and cold air, leading to more efficient cooling and lower energy costs.

    Another strategy is to upgrade to more energy-efficient cooling systems, such as liquid cooling or economizers. These systems can reduce energy consumption and improve cooling efficiency, ultimately lowering operational costs. Regular maintenance and monitoring of cooling systems are also essential to ensure they are operating at peak performance and catching any issues before they escalate.

    In conclusion, the cost of inefficient data center cooling can be significant, both in terms of energy consumption and potential hardware failures. By implementing proper airflow management, upgrading to energy-efficient cooling systems, and conducting regular maintenance, organizations can improve cooling efficiency, reduce energy costs, and prolong the lifespan of their data center equipment. Investing in efficient cooling solutions not only saves money but also ensures the smooth operation of data centers in the long run.

  • SE-1000-5 5V 150A 750W Server Power Supply – High Power, Forced Air Cooling, Integrated DC OK Signal, AC/DC Converter for Demanding Data Center and Industrial Applications

    SE-1000-5 5V 150A 750W Server Power Supply – High Power, Forced Air Cooling, Integrated DC OK Signal, AC/DC Converter for Demanding Data Center and Industrial Applications


    Price: $178.18
    (as of Nov 23,2024 01:21:27 UTC – Details)



    SE-1000-5: Power Your Automation Affordably & Efficiently Looking for a reliable, cost-effective power solution for your automation systems? The SE-1000-5 delivers 750W of continuous power at 5V, making it the ideal choice for budget-conscious automation projects. Maximize your budget without compromising on performance. Flexible Integration & Wide-Ranging Compatibility: Simplify your automation setup with the SE-1000-5’s flexible input voltage. Accepting both 85-264VAC and 120-373VDC, this PSU easily integrates into various automation environments and accommodates a wide range of power sources. Its compact footprint optimizes valuable panel space, streamlining your system design. Safeguard Your Equipment with Comprehensive Protection: Protect your valuable automation equipment with the SE-1000-5’s built-in safeguards. Comprehensive protection against short circuits, overloads, over-voltage, and over-temperature ensures continuous, dependable operation, minimizing downtime and maximizing productivity. Reliable Performance & Reduced Operating Expenses: Engineered for high efficiency, the SE-1000-5 minimizes power consumption, lowering your operating expenses. Enjoy consistent, dependable automation performance while reducing your energy footprint. Key Features: 750W continuous power at 5V Wide input voltage range: 85-264VAC or 120-373VDC Integrated short circuit, overload, over-voltage, and over-temperature protection High efficiency for reduced energy consumption and lower operating costs Space-saving design for optimized panel space The SE-1000-5 is the smart choice for automation applications where affordability, reliability, and efficient operation are critical. Power your automation with confidence and keep costs under control.
    Affordable 750W Power for Automation: The SE-1000-5 delivers 750W at 5V, an economical solution for basic automation systems where reliable power is essential. Maximize your budget.
    Flexible Input for Diverse Automation: Accepts 85-264VAC or 120-373VDC input, simplifying integration into various automation setups and accommodating a wide range of power sources.
    Built-in Protections Safeguard Systems: Comprehensive protections against short circuit, overload, over-voltage, and over-temperature protect your valuable automation equipment.
    Reliable Performance, Reduced Costs: High efficiency minimizes power consumption, lowering operating expenses and ensuring consistent, dependable automation performance.
    Compact Design Optimizes Panel Space: Its small size simplifies installation in automation cabinets and control panels, maximizing space utilization and streamlining your system design.


    Are you in need of a high-powered server power supply for your demanding data center or industrial applications? Look no further than the SE-1000-5 5V 150A 750W Server Power Supply.

    This powerful power supply is capable of delivering up to 150A of 5V power, making it perfect for high-performance servers and industrial equipment. With a total power output of 750W, this power supply is designed to handle even the most demanding applications with ease.

    The SE-1000-5 features forced air cooling to ensure optimal performance and reliability, even in high-temperature environments. Additionally, it comes equipped with an integrated DC OK signal, allowing for easy monitoring of the power supply’s status.

    With its AC/DC converter design, the SE-1000-5 is versatile and can be used in a wide range of applications. Whether you’re looking to power a server rack or industrial machinery, this power supply is up to the task.

    Don’t settle for a subpar power supply – invest in the SE-1000-5 5V 150A 750W Server Power Supply for reliable, high-power performance in your data center or industrial facility.
    #SE10005 #150A #750W #Server #Power #Supply #High #Power #Forced #Air #Cooling #Integrated #Signal #ACDC #Converter #Demanding #Data #Center #Industrial #Applications

  • 2.2KW Water Cooled Spindle Motor ER20 Water Cooling Engraving Milling Grinding

    2.2KW Water Cooled Spindle Motor ER20 Water Cooling Engraving Milling Grinding



    2.2KW Water Cooled Spindle Motor ER20 Water Cooling Engraving Milling Grinding

    Price : 98.99

    Ends on : N/A

    View on eBay
    Are you looking for a powerful and efficient spindle motor for your CNC machine? Look no further than the 2.2KW Water Cooled Spindle Motor ER20 Water Cooling Engraving Milling Grinding!

    This high-performance spindle motor is designed for a wide range of applications, including engraving, milling, and grinding. With a power output of 2.2KW, this motor can handle even the most demanding tasks with ease.

    The water cooling system ensures optimal performance and longevity, while the ER20 collet allows for easy and secure tool changes. Whether you’re working on wood, metal, or plastic, this spindle motor will deliver top-notch results every time.

    Upgrade your CNC machine with the 2.2KW Water Cooled Spindle Motor ER20 Water Cooling Engraving Milling Grinding and take your projects to the next level!
    #2.2KW #Water #Cooled #Spindle #Motor #ER20 #Water #Cooling #Engraving #Milling #Grinding

  • LoveRPi Active Cooling Media Center PC Case with Fan for Raspberry Pi 3 Model B+, Libre Computer Board, ASUS Tinker Board (Black)

    LoveRPi Active Cooling Media Center PC Case with Fan for Raspberry Pi 3 Model B+, Libre Computer Board, ASUS Tinker Board (Black)


    Price: $10.00
    (as of Nov 22,2024 23:18:12 UTC – Details)



    Supported Single Board Computers:

    • Raspberry Pi 3 Model B+
    • Raspberry Pi 3 Model B
    • Raspberry Pi 2 Model B
    • Raspberry Pi Model B+
    • Libre Computer Board AMl-S905X-CC
    • Libre Computer Board ALL-H3-CC
    • Libre Computer Board ROC-RK3328-CC
    • ASUS Tinker Board S
    • ASUS Tinker Board
    • ODROID-C2***
    • ODROID-C1+***

    ***MicroUSB Power Only, DC Jack not supported. MicroSD card inaccessible due to different positioning.
    ULTIMATE PERFORMANCE AND DURABILITY: Exclusively designed for the Raspberry Pi 3 Model B+, Libre Computer Boards, ASUS Tinker Board, and ODROID-C2***, this revolutionary case is built with durable polycarbonate and active cooling fan to provide performance and protection to your SBC.
    INTRICATE FEATURES: We analyzed over 30 cases and created four revisions to build this final case design. It features numerous design elements not found on any other case and takes into account all of the popular single board computers on the market.
    QUICK AND EASY ASSEMBLY: Screw optional design uses numerous latches to secure both the board and the case together. MicroSD card slot is extended to prevent damage allow for easy tool-less removal. GPIO ribbon cable slot enables expansion without sacrificing protection.
    MATTE BLACK WITH FRONT LED AND IR: Sleek matte black design is perfect for media center applications with a clean glossy front cover for LEDs and IR sensors found on Libre Computer Boards and the ODROID-C2. Raspberry Pi 3 requires separate IR receiver (diode + transistor).
    TWO FAN SPEEDS AND SUPPORTS TALL HEATSINKS: Brushless DC fan can be connected to 5V for maximum performance or 3.3V for quiet cooling. Can be used with tall heatsinks up to 12mm for best results.

    Customers say

    Customers like the design, fit, and sturdiness of the system cabinet. They mention it’s pretty neat, fits flawlessly, and works well overall. Some also appreciate the temperature control, value for money, and ease of assembly. However, some customers disagree on the noise level.

    AI-generated from the text of customer reviews


    LoveRPi Active Cooling Media Center PC Case with Fan for Raspberry Pi 3 Model B+, Libre Computer Board, ASUS Tinker Board (Black)

    Looking for a sleek and efficient cooling solution for your Raspberry Pi 3 Model B+, Libre Computer Board, or ASUS Tinker Board? Look no further than the LoveRPi Active Cooling Media Center PC Case with Fan in Black. This case not only provides excellent heat dissipation to keep your board running smoothly, but also adds a touch of style to your setup.

    The built-in fan helps to circulate air and prevent overheating, ensuring optimal performance for your media center or other projects. The black color of the case is both modern and versatile, blending seamlessly with any home theater or office setup.

    Whether you’re using your board for streaming media, gaming, or coding, the LoveRPi Active Cooling Media Center PC Case with Fan is the perfect accessory to keep your device cool and running efficiently. Upgrade your setup today and experience the benefits of active cooling for your favorite single-board computer.
    #LoveRPi #Active #Cooling #Media #Center #Case #Fan #Raspberry #Model #Libre #Computer #Board #ASUS #Tinker #Board #Black

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