4X M.2 SSD to U.2 Adapter 2In1 M.2 NVMe and -Bus NGFF SSD to PCI-E U.2 SFF-8639 Adapter PCIe M2 Converter,with Shell

B: m.2 NGFF of protocol; Usually there are two space (supported by this product).
M key: m.2 NVME of pcie protocol; Usually a space (supported by this product).
M.2 disks can be used only if they have NVME or label on them.
Specifications:
Name: M.2 to U.2 expansion card.
PCI-E3.0 X4 GEN3
Transmission speed: U2 SFF-86
type: with shell
colour: silver
Material: PCB
Size: 96x65mm

Package Contents:
4 x adapter plate
4 x shell
4 pack x Screws

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.