Manufacturer: In Win Development, Inc Manufacturer Part Number: IW-R400-00-0 Manufacturer Website Address: Brand Name: In Win Product Model: IW-R400 Product Name: IW-R400 Rackmount Enclosure Product Type: System Cabinet Motherboard Support: ATX Motherboard Support: SSI CEB Number of Fans Support: 3 Number of Fans Install: 1 Number of External 5.25" Bays: 3 Number of External 3.5" Bays: 2 Number of Internal 3.5" Bays: 3 Number of Total Bays: 8 Number of Expansion Slots: 7 Front USB: Yes Interfaces/Ports: 2 x USB 2.0 USB Front Number of Power Supplies Support: 1 Compatible Rack Unit: 4U Form Factor: Rack-mountable Dimensions: 7" Height x 19" Width x 20" Depth Weight (Approximate): 27 lb - Net Weight (Approximate): 39.24 lb - Gross