-For use with SAS/SATA HBAs (Host Board Adapters) and external drive housings. -Latch type SFF-8088 (4x) to latch type SFF-8088 (4x) connectors . -SAS (Serial Attached SCSI) compliant. -Fully compliant with SATA II specifications (Electrical Specifications, section 6.6). -Full duplex communication up to 3Gb each direction/channel. -Colour: Black.