The Adaptec ACK-I-HDmSAS-4SAS-SB-.8M is an internal Mini Serial Attached SCSI HD x4 (SFF-8643) to (4) x1 Serial Attached SCSI (adapter based) fan-out cable with sideband signals (SFF-8448). It measures 0.8 meters and is used for connecting a SAS/SATA adapter to to SAS disks, or a SAS/SATA backplane.
Products specifications
| Attribute name | Attribute value | 
|---|
| Cable Length | 31.5" | 
| Harmonized System (HS) code | 84733080 | 
| Product color | Multicolor | 
| Connector 1 | SFF-8643 | 
| Connector 2 | SFF-8643 |