The Chieftec GA-01B-M-OP is a black midi-tower case from the APEX AIR series, designed to house a wide range of motherboard sizes from Mini ITX up to E-ATX. Its structure is built from 0.6mm SPCC steel and features a mesh front panel for efficient airflow, complemented by a tempered glass side panel that lets you see your internal components. To keep your system cool from the start, it comes with three pre-installed 140mm PWM fans located at the front and rear. Inside, you will find ample space for modern hardware, supporting graphics cards up to 400mm in length and CPU coolers reaching 175mm in height. The chassis provides versatile storage options with three 2.5" and two 3.5" internal drive bays, while the front I/O panel offers convenient access to a USB 3.2 Gen2 Type-C port, two USB 3.0 ports, and standard audio jacks, along with a dedicated RGB mode button. For those looking to expand their cooling, the case supports radiators up to 420mm in the front and 360mm at the top, with additional mounting points for fans on the side and PSU cover.