Description:

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. 

These new HD Connectors will be used on the SAS 3.0 specification when it is released.  Cable material may change but the connectors will be the next generation of SAS to run at 12Gb/s.

External HD Mini-SAS Copper Cables

 

Notice: 
There are SFF-8643 port for belowing raid card:

LSI 9207-8i
Adaptec Raid 71605
Adaptec Raid 72405
Adaptec Raid 8885Q
Adaptec Raid 8885
Adaptec Raid 8805
Adaptec Raid 8885E
Adaptec Raid 71685
Adaptec Raid 7805
Adaptec Raid 71605E
Adaptec Raid 78165
Adaptec Raid 81605ZQ


There are SFF-8644 port for belowing raid card:

LSISAS9202-16e
Adaptec Raid 71685
Adaptec Raid 8885Q
Adaptec Raid 8885
Adaptec Raid 8885E
Adaptec Raid 78165

Picture: