Silverstone Stackable Aluminum Hard Drive Pad with SATA 6 Gbps and SAS Interface Support - Black (SD01B) Unique stackable design for easy upgrades and expansion. Support SATA and SAS interface hard drive. Maximum 6Gbits data transfer speed via SATA or SAS dual-lane interface. Plug and Play & Hot-swappable connection. (system with AHCI mode) The power source synchronizes with computer.