Asus Prime AP303 TG ATX Mid Tower Case

The ASUS Prime AP303 TG is a compact yet capable ATX mid-tower chassis engineered for high-performance PC builds that demand strong cooling headroom and structural support for large graphics cards. Built around a 44-litre internal volume, it manages to accommodate full-size components without compromising desk space, making it a practical choice for builders who want capable hardware in a restrained footprint. At the heart of the AP303's cooling capability is support for radiators up to 360mm in length, with a maximum thickness of 60mm, allowing the use of dual-fan thick radiators at the top. The rear accommodates a single 120mm fan, and one 120mm fan comes pre-installed. In total, up to seven fans can be mounted across all supported positions to handle demanding thermal loads from modern CPUs and GPUs. Graphics card support is a standout consideration in this chassis. The AP303 accepts GPUs up to 360mm long, and a dedicated graphics card bracket specifically supports GeForce RTX 50 Series cards ranging from 310mm to 360mm. This bracket secures the card with screws, actively reducing sag and lateral movement — an important feature given the weight of high-end multi-slot cards. Power delivery is reinforced by an included UL-certified internal power cable rated at 15 amperes, compatible with ATX PSUs up to 180mm in length and power supplies rated up to 1200 watts. Connectivity on the front I/O panel includes one USB 3.2 Gen 2x2 Type-C port running at 20Gbps, two USB 3.2 Gen 1 Type-A ports, and a combined headphone and microphone jack. A unified front I/O header simplifies motherboard connections. Storage options include one 3.5-inch HDD bay and two 2.5-inch SSD mounts. Seven expansion slots provide flexibility for multi-card or add-in card configurations. Motherboard compatibility extends to ATX, Micro-ATX, and Mini-ITX form factors, with CPU cooler clearance up to 165mm. Cable management benefits from a 34mm-wide compartment behind the motherboard tray. Side panels use a tool-free clip mechanism for straightforward access. Metallic quasi-filter mesh panels on the exterior are designed to improve airflow while limiting dust ingress, with an additional dust filter located at the bottom. Verifiable Specifications: - Form Factor: ATX Mid Tower - Internal Volume: 44 litres - Motherboard Support: ATX, Micro-ATX, Mini-ITX - Max GPU Length: 360mm (bracket for 310–360mm RTX 50 Series) - Max Radiator: 360mm (up to 60mm thick) - Radiator Support Positions: Top (360/280/240/140/120mm), Rear (120mm) - Pre-installed Fans: 1 x 120mm (rear) - Max Fan Support: 7 total - Front I/O: 1x USB 3.2 Gen 2x2 Type-C (20Gbps), 2x USB 3.2 Gen 1, Headphone/Mic - Max PSU Length: 180mm (up to 1200W ATX) - Max CPU Cooler Height: 165mm - Storage: 1x 3.5" HDD, 2x 2.5" SSD - Expansion Slots: 7 - Materials: Steel, Tempered Glass - Colour: Black - Warranty: 2 Years