The CORSAIR Carbide Series 275R is a compact mid-tower ATX case that matches minimalist design and a beautiful edge-to-edge windowed side panel with a straightforward interior layout and versatile cooling options. Material: Acrylic Material: Plastic Material: Steel Material: Acrylic Material: Plastic Material: Steel Product Type: Computer Case Motherboard Supported: Mini ITX Motherboard Supported: Micro ATX Motherboard Supported: ATX Product Type: Computer Case Manufacturer Part Number: CC-9011130-WW Motherboard Supported: Mini ITX Motherboard Supported: Micro ATX Motherboard Supported: ATX Weight (Approximate): 18.87 lb Color: Black Form Factor: Mid-tower Color: Black Form Factor: Mid-tower Manufacturer: Corsair Product Model: 275R Product Name: Carbide Series 275R Mid-Tower Gaming Case - Black Product Line: Carbide Brand Name: Corsair Brand Name: Corsair Height: 17.2 Width: 8.3 Depth: 17.6 Number of External 5.25 Bays: 0 Number of Power Supplies Supported: 1 Number of Power Supplies Installed: 0 Number of Internal 3.5 Bays: 2 Number of Total Expansion Bays: 4 Product Family: Carbide Number of Fans Supported: 6 Number of Fans Installed: 1 Number of External 5.25 Bays: 0 Number of Power Supplies Supported: 1 Number of Power Supplies Installed: 0 Number of Internal 2.5 Bays: 2 Number of Internal 3.5 Bays: 2 Number of Internal 5.25 Bays: 0 Number of Total Expansion Bays: 4 Number of Total Expansion Slots: 7 Total Number of USB Ports: 2 Installed Fan Size: 4.72 Total Number of Audio In Ports: 1 Total Number of Audio Out Ports: 1 Power Supply Installed: No