It is an External M1ni S-AS SFF-8088 to m1ni s-as High Density HD SFF-8643 data Server hard disk Cable
It is used for connecting a S-AS SATA adapter to a S-AS SATA backplane.
The High Density (HD) system referenced as HD M1ni S-AS (SFF-8643) in the S-AS 2.1 standard, meets the 6Gb/s S-AS specification.
These HD Connectors will be used on the S-AS 3.0 specification when it is released. Cable material may change but the connectors will be the next generation of S-AS to run at 12Gb/s.
internal HD M1ni S-AS Copper Cables