Chenbro RM21508 2U Rackmount Server Case 8 X 3.5 SAS/SATA Hotswap Bay with 400W Power Supply Bulit in 8x Hot-Swappable SATA (I and II) / SAS drive bays Supports up to eight 3.5" SATA (I and II) as well as SAS disk drives 1 x Slim CD-ROM bay,1 x FDD bay, 8 x 3.5 " Hot-Swappable drive bays, 6 x Low Profile PCI/PCIe Expansion Slots, 2x Front USB access Support up to EEB (12" x 13"), CEB (12"x10.5"), or smaller 1U/2U motherboard. Movable Motherboard sitting base Dimension (WxHxD, inch) 16.9"x3.5"x26" (No Rail included. Support most of Universal Rack Rail) 28.7lb, ROHS 400W Single power supply included.