With this M.2 NVMe SSD PCI-E 4.0 X4 adapter you can add an NVME SSD to your motherboard without M.2 slot. With the channel of PCI-E 4.0 X4, the speed is up to 64 Gbps, 6000+ MB/s random read and 5000+ MB/s write (max), improved computer performance, backward compatible with PCIe 1.0 2.0 3.0 Multi-layer PCBA, multi-layer protection: over-current protection, over-voltage protection, short circuit protection, protection, heat sink layer for overheating protection. Maximum protection of M.2 NVMe SSD from electrical signal interference. No driver required for Win10, plug and play, support for NVMe SSD, such as 980 Pro/970 /950Pro/960EVO/XP941/PM951/PM961/SM951/SM961, Firecuda 520 series, SSD6/7 M6e series, . ent NVMe 4.0, SN850, M.2 SSD and so on. Material:plastic colour:black Package Contents: 4 * pcie m.2 adapter Only the above package content, other products are not included. Note: Light reflection 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.