It is an external Mini Serial Attached SCSI HD x4 (SFF-8644) to Mini Serial Attached SCSI x4 (SFF-8088) cable. The High Density (HD) system referenced as HD Mini-SAS (SFF-8644) in the SAS 2.1 standard, meets the 6Gb/s SAS specification.
Length: 0.5M. There are SFF-8643 port for belowing raid card: LSI 9207-8i, Adaptec Raid 71605-72405-8885Q-8885-8805-8885E-71685-7805-71605E-78165-81605ZQ. There are SFF-8644 port for belowing raid card: LSISAS9202-16e, Adaptec Raid 71685-8885Q-8885-8885E-78165.