Connects 2 USB Motherboard 20 pin devices to NGFF B or M Key motherboard, Compliant for PCI Express M.2 specification 1.0 Compliant for USB 3.0 specification, Data transfer rate up to 5.0Gbps Supports socket 2 (B Key) & socket 3 (M Key), Stable and reliableNEC Chipset Renesas D720201 Two Motherboard 20 pin male and one NGFF M.2 B+M key male connectors available, Floppy 4 pin power connector available for stable power 2 screw holes 2260/2280 available, Easy installation & no driver required, Supports any OS, like Windows, WinCE, & Linux etc. size:82 x 22.5 x 13mm Material:PCB+electronic components colour:red Package Contents: 1 x 2 Port Motherboard 20 Pin to NGFF M.2 B+M Key Adapter Card 1 x Floppy 4 Pin to Molex Power Cable 1 x Screw 1 x screwdriver(Note: Random , don't accept the specified.) Only the above package content, other products are not included. Note: Light 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.