2 Pcs NGFF To PCI-E Adapter Card M.2 To PCIE X4 Expansion Card NGFF To PCI-E X4 Slot Card Compatible With XI X4 X8 X16 1. Using high-quality materials, strong oxidation resistance, wear resistance, and good conductivity2. Using multi-layer circuit boards for lossless transmission, using 4-layer circuit boards, it has very strong anti-interference ability, effectively ensuring the stability of PCI-E high-speed signal transmission, data integrity, and impedance matching.3. Crack design at the end of the card slot, compatible with XI X4 X8 X16, full-standard PCI-E devices4. The use of horizontal small 4PIN power supply interface can effectively avoid the problem of interference with PCI-E devices after the power cord is inserted.5. With device indicator light, the connection is normal, the device is powered on, and the indicator light is onColour:blackMaterial:Plastic + MetalPackage Contents:2 x Expansion cardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.