Description: 20 Pin Protection Module: For TPM-L R2.0/ for Gigabyte GC-TPM2.0. TPM2.0 Module: Please make sure your motherboard support TPM 2.0 module. Motherboard Module: Please check the number after the English letter. Any number greater than 99 (including 99) is fine, such for X99, 99 after x is fine; If it is AMD, please make sure that the memory type of the motherboard must be DDR4. Check the Compatibility: The first step is to confirm your own motherboard manufacturer; the second step is to confirm the pins of your motherboard, whether it is 12pin/14pin/20pin, etc. Please try and provide the motherboard model (the middle part of the motherboard is usually above the graphics card slot) and photo socket. There is no fixed specification for this interface, and there are many varieties. Specification: Material: Metal Size: Approx. 5x5x3cm/ 1.97x1.97x1.18inch Package Includes: 1 Piece 20 Pin Protection Module Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.