StarTech Port Multiplier Controller Card - 5-Port SATA to Single SATA III Model ST521PMINT Internal Ports: 5 x SATA (7 pin, Data) Receptacle Standard: USB 3.0 Data Transfer Rate: 6.0 Gbps Specifications: Maximum Data Transfer Rate: 6 Gbps Type and Rate: SATA III (6 Gbps) Port Multiplier: Yes RAID: No Max Drive Capacity: Currently tested with up to 6TB 7200 RPM hard drives General Specifications: Port Multiplier support on the SATA host connection is required Dimensions: 4.70 x 0.70 x 3.70 Weight: 1.50 oz. Package Contents: 1 x 5-Port SATA III Port Multiplier Adapter Card w/ installed full profile bracket 1 x SATA Cable 1 x SATA Power Y Splitter Cable Adapter - M/F 1 x Low Profile Bracket 1 x Instruction manual