Features: Adopting an aluminum alloy shellto enhances heat dissipation. The adapter for converting a 3x8p graphics card power connector to a 40 series graphics card power connector. It can convert the old 3x8p power connector into a modern 40 series power connector, allowing the old graphics card to adapt to the new power supply. The 8pin power adapter supports the ATX3.0 12V power specification, which is an efficient power specification that provides more stable and reliable power output. It can also support up to 600W of power supply, which can meet power requirements of most highperformances graphics cards. The adapter is equipped with a 12+4P power connector, which can provide sufficient power output and stability to meet the needs of high-performances graphics cards. The converter has a 180 degree power steering joint design, which facilitates adjusting the direction of power connection to adapt to different chassis layouts and power cable. This makes it flexible to adapt to different computer system configurations. The adapter has a simple plug-in design that is easy to install and disassemble. Simply plug it into the graphics card power connector and power connector. In addition, the adapter also has a plug locking device to ensure a secure connection of the plug and prevent accidental removal. The 16P plug must be fully inserted into the graphics card power interfaces. If not fully inserted, there is a risk of poor contact, resulting in excessive current and high temperature. Specifications: Item: ATX3.0 12VHPWR 12+4P 600W Power Adapter Connector for Desktops 4x8P to 40 Series Graphics Card Material:Aluminium Alloy Size:approx 65x32x17mm/2.56x1.26x0.67in Support600W Power TypesPH316 38A/ PH316 38B/PH316 38A/PH316 38B Package Includes: 1PC 3x8P to 12+4P 600W Power Adapter note: Due to the problemsof lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.