The Chieftec HO-12B-OP is a black Micro-ATX tower case for building a desktop PC. Its SECC steel chassis has a listed thickness of 0.5 mm, forming the enclosure for system components.
Two 5.25-inch bays and two 3.5-inch bays provide space for drives, with support for 2.5-inch and 3.5-inch drives. Four expansion slots accommodate add-in cards, and the CPU cooler can be up to 140 mm high.
Front-panel connections include two USB 3.0 Type-A ports, two USB 2.0 ports, an audio input and an audio output. The case measures 173 mm wide, 368 mm deep and 365 mm high. The power supply is not included, so it must be configured separately for the desktop build.