Chieftec UC-03B-OP computertower sort

The Chieftec UC-03B-OP Tower Black is a slim ATX tower case designed to house standard ATX, Micro ATX and Mini-ITX motherboards. The chassis offers a compact exterior while providing internal space for a standard PS II type power supply and multiple drive bays suitable for 2.5" SSDs and 3.5" HDDs. Cooling support includes mounts for 60 mm and 120 mm fans to enable effective airflow in a small footprint.

Advantages

The UC-03B-OP combines a slender, unembellished exterior with practical internal layout and a lightweight carbon steel construction. It supports several drive form factors (5.25", 3.5" and 2.5") and provides front USB 3.2 Gen 1 Type-A connectivity. The case is compatible with common ATX, Micro ATX and Mini-ITX motherboards and allows flexible fan configurations for targeted cooling.

Suitable for

• Home or office PC builds where a compact ATX tower is preferred
• Systems requiring multiple 2.5" SSDs and 3.5" HDDs
• Budget or entry-level gaming and productivity builds using ATX/Micro ATX/Mini-ITX boards

Key specifications

• Model: Chieftec UC-03B-OP
• Form factor: Tower; supports ATX, Micro ATX, Mini-ITX
• Drive bays: 1 x 5.25", 2 x 3.5", 3 x 2.5"
• Fan support: optional 60 mm and/or 120 mm fans (rear/side/top as supported)
• Front ports: 2 x USB 3.2 Gen 1 (Type-A)
• Material: Carbon steel
• Colour: Black
• Dimensions (W x D x H): 166 x 443 x 373 mm
• Weight: approx. 3.15–3.87 kg (product listing varies)
• Power supply: not included (supports standard PS II type)

How to use

Install a compatible motherboard (ATX, Micro ATX or Mini-ITX) onto the standoffs, fit the power supply of PS II type into the designated compartment, and mount drives into the 5.25", 3.5" or 2.5" bays as required. Connect front-panel USB ports to the motherboard header and position optional 60 mm or 120 mm fans in available mounting locations to improve airflow. Route cables neatly to maintain unobstructed air paths and ensure front-to-rear ventilation.

Recommendations

For optimal cooling in this slim tower, use a balanced combination of intake and exhaust fans (for example, one 120 mm intake and one 60 mm exhaust) and prefer 2.5" SSDs when space or vibration is a concern. Verify PSU depth and cable routing before final assembly to ensure compatibility with installed drives and fans.