- Hybrid backplane design for best supportability. Supports up to 8 port SAS3 12Gb/s or 6 port SAS3 12Gb/s and 2 port NVMe(determined by system and cable configuration) - 8hot-swap 2.5 drives bays - 1U Rackmountchassis 19.98 depth - Motherboard size support up to ATX 12x10 MB - 600W Redundant Power Supply Gold Level Certified - Optimize cooling with 4 40x28mm (22.5K RPM) PWM fans (optional upgrade up to 6 PWM fans)