M. 2(A+E Key) to 2 ports SATA 6G expansion card This product can be connected to 2ports SATA interfaces through the M. 2 (A+E Key) slot of the PC host, and you can connect 2 SSD solid state drives or mechanical hard drives with SATA interfaces at the same time through the SATA data cable. This product uses super PCIe 3.0 total bandwidth, faster data transmission speed, and brings users and players a faster, lower performance, and highly stable storage device.