The ACK-E-mSASx4-mSASx4-1M R is an external mini Serial Attached SCSI x4 (SFF-8088) to x4 (SFF-8088) mini Serial Attached SCSI cable measuring 1 meter. This cable is RoHS compliant.
This mini SAS cable to 4x SAS 29pin with 50cm length, enables you to connect e.g. a controller with mini SAS 36pin connector (SFF 8087) to 4 SAS (SFF 8482) HDD.