ITEM NAME:M.2 NVMe SSD NGFF TO PCIE 3.0 X4 adapter M Key interface HcJ.AU.M.2 NGFF to PCI-E X4 transfer card, there are 4 fixed holes on the board, 22 32 mm, 22 42 mm, 22 60 mm, 22 80 mm, respectively. With work indicator light. Interface PCI-E 4X or PCI-E 1X. Support System Windows, Linux Mac OS\.