1.ST-MKEY811 is used to read or write SFF-8612 oculink device(such as GPU or nVME SSD) in M.2 M-Key slot through SFF-8612 extension cable.

2.The card transmits PCI Express 4.0 signals using the NVMe protocol.Data transfer rate up to 64Gbps, Supports NVM Express (NVMe) 1.2.