The Chieftec BS-10B-300 is a compact black computer case for Mini-ITX and mATX systems, with a choice of vertical or horizontal placement. Its pivot mechanism opens access to the drive area for semi tool-free installation.
Made of 0.8 mm SGCC steel, the case measures 290 × 145 × 343 mm (D × W × H); the stand adds 2 mm. It supports motherboards up to 244 × 220 mm. The drive layout includes an external ultra-slim 5.25-inch bay for a 9.5 mm optical drive, plus internal mounting for one 3.5-inch and one 2.5-inch drive, or two 2.5-inch drives.
Front connections include two USB 3.1 Gen 1 ports, two USB 2.0 ports, USB Type-C at 480 Mbit/s, audio-out, microphone-in and an SD card slot for SD/MMC/MS cards at up to 480 Mbit/s. A GPF-300P 300 W TFX 80+ Bronze power supply is specified as optional. The case has four expansion slots and supports an optional rear 80 mm fan.