AOpen S135B is a unique Mini-ITX housing. It can be placed horizontally or vertically. & its installation is easy. With its 60W power supply unit, you can easily tell how much it saves for your electricity bill. Special cover design for front I/O access, included two USB (Universal Serial Bus) ports & stereo audio-out / microphone-in. Features AOpen S135B Mini-ITX Computer Chassis 4.2L with 60W Power Supply Unit Housing Material type: 0.8mm SECC Special cover design for front I/O access, included two USB (Universal Serial Bus) ports & stereo audio-out / microphone-in Bending edge design for prevent hand cut Side cooling hole to increase ventilation efficiency Tool-free screw design Power solution: Internal DC board + External Adaptor Case Colour: Black/ Silver Depth :32.5 cm Description: Note: Housing only, Motherboard, optical drive, HDD, CPU & fan are not included. Form Factor: Mini Tower Headphone Ports :1 Height :6.0 cm Internal Expansion Bays :1 x 3.5 inch Marketing: AOpen S135B is a unique Mini-ITX housing. It can be placed horizontally or vertically. & its installation is easy. With its 60W power supply unit, you can easily tell how much it saves for your electricity bill. Special cover design for front I/O access, included two USB (Universal Serial Bus) ports & stereo audio-out / microphone-in. Microphone In Port :1 Model Name :S135B Motherboard Compatibility: Micro ATX Power: 60 W Product Type: Barebone Computer USB (Universal Serial Bus) Ports :2 x USB (Universal Serial Bus) Weight :2.07kg Width: 22.0 cm