2.5" Hot Swap Lenovo ThinkServer 600GB Gen5 SAS 12Gb s 10K RPM: Interconnection Connector Type: SAS 12Gb/s; Connector Type: Serial ATA 7-pin The ContentsDrive Type of General Enclosure: Hot-swap The form factor is 2.5. Goal Use: Server Performance Ports/Connectors: 7-pin SAS 12Gb/s port; Data Transfer Rate: 12Gbps Capacity of Storage Hard Drive