PCI-Express 4.0 Mini SAS HD SFF-8643 to Oculink SFF-8611 SFF-8612 PCBA Female Adapter With Bracket; The Adapter with Full and Low Profile PCI Slot Profile Mounting Bracket; The Adapter External will work both on the host and device side. it is reversible design.; The adapter support SAS to SAS or PCI-E to PCI-E singal.; Supports up to 12Gb/s Mini SAS or PCI-E 4.0 Data Transfer Rate.