ASUS Prime AP303 ATX Mid Tower Cabinet ( White )

The ASUS Prime AP303 is a compact ATX mid-tower chassis designed to squeeze maximum hardware capacity into a 44-litre footprint. Available in a clean White colourway with a tempered glass side panel, the AP303 suits builders who want a space-efficient case that still accommodates enthusiast-grade components without compromise. At the heart of the AP303's design is its generous clearance envelope. The chassis accepts graphics cards up to 360 mm in length, making it compatible with modern high-end GPUs including the GeForce RTX 50 Series. To prevent GPU sag — a real concern with larger, heavier cards — ASUS includes a dedicated graphics card bracket and holder that securely mounts cards between 310 mm and 360 mm using screws, minimising flex and movement during transport or daily use. Cooling flexibility is a standout strength. The top of the case supports radiators up to 360 mm (with a maximum thickness of 60 mm), as well as three 120 mm or three 140 mm fans, giving you ample room for a high-performance all-in-one liquid cooler. The rear accommodates a single 120 mm radiator or fan. A pre-installed 120 mm rear fan (configuration may vary by variant) is included to help establish positive airflow from day one. Metallic quasi-filter mesh panels further aid airflow while reducing dust ingress, and a removable dust filter is located at the bottom of the chassis. The front I/O panel is future-ready: a single USB 3.2 Gen 2×2 Type-C port delivers data transfer speeds of up to 20 Gbps, complemented by two USB 3.2 Gen 1 (USB-A) ports and a combined headphone/microphone jack. A thoughtfully designed unified front I/O header simplifies cable connections to the motherboard. The AP303 also includes a UL-certified internal power cable rated at 15 amperes, providing stable power delivery for high-end systems running ATX power supplies up to 180 mm in length. Behind the motherboard tray, a 34 mm cable management channel keeps wiring tidy despite the compact interior. Tool-free side panels attach via a clip mechanism for quick, hassle-free access. The chassis supports ATX, Micro-ATX, and Mini-ITX motherboards across 7 expansion slots, and provides storage for up to three drives — two dedicated 2.5" bays and one combo 2.5"/3.5" bay. — Verified Specifications — Model: ASUS Prime AP303 Tempered Glass Panel White Form Factor: ATX Mid Tower Motherboard Support: ATX / Micro-ATX / Mini-ITX Dimensions (W×H×D): 215 × 425 × 485 mm Weight (Tempered Glass Edition): 7.8 kg Expansion Slots: 7 Drive Bays: 2 × 2.5"; 1 × 2.5"/3.5" combo Max GPU Length: 360 mm Max CPU Cooler Height: 165 mm Max PSU Length: 180 mm Radiator Support (Top): up to 360 mm (max 60 mm thick); (Rear): 120 mm Fan Support (Top): 3 × 120 mm or 3 × 140 mm; (Rear): 1 × 120 mm Pre-installed Fans: 1 × 120 mm rear (varies by model) Front I/O: 1 × USB 3.2 Gen 2×2 Type-C (20 Gbps), 2 × USB 3.2 Gen 1, 1 × audio combo Cable Management Space: 34 mm Dust Filter: Removable bottom filter Internal Power Cable: UL-certified, 15 A rated