External Connectors: 1 x SFF-8088 mini-SAS Internal Connectors: 4 x SFF-8087 mini-SAS Transfer Rate: Up to 300 MBps Per Port RAID: RAID 0/1/1E/5/5EE/6/10/50/60/JBOD Cache Memory: 512 MB DDR2 Dimensions: 4.60" x 6.60" Features: Product Type: SATA RAID Controller Drive Support: Up to 256 x Physical Green Compliance: Yes Green Compliance Certificate/Authority: RoHS Parts: 3 years limited