- 700W Redundant Power Supplies Gold Level Certified - 8x 2.5" Hot-swap SAS / SATA Drive Bays - Battery Backup Power (Redundant) - 6x 4cm Counter-rotating PWM fans (Optional 6th fan for AOC cooling) - 2x Full-height I/O Expansion slots & 1x Low-profile I/O Expansion slot - Default quick-release rail - Full SES2 support is available with SAS motherboards and other compatible components.