A good PC case respects its user’s space, and that’s where the ASUS Prime AP303 shines. This 44L ATX case gives you the size you need for high-end components while avoiding bloat, minimizing its footprint on your setup. With multiple side panel and color options, the AP303 lets you pick how you want your rig to look while giving you a chassis that’s ready for the latest PC hardware. Pair those perks with the case’s user-friendly features and cooling optimizations, and you’re looking at a compact frame with massive potential.
A compact case that’s all killer, zero filler
The 44L ATX frame of the AP303 uses every square inch smartly, giving you room for ATX PSUs up to 180mm long and graphics cards up to 360mm long. The case’s graphics card bracket, built to support the heft of GeForce RTX 50 Series graphics cards measuring between 310mm and 360mm long, ensures long-term hardware stability. As today’s graphics cards often feature beefy heatsinks for premium thermal performance, bracket support is an added benefit. Stable power delivery is equally vital. Rest assured that the case’s UL-certified internal power cable, which delivers 15 amperes of current to the front-mounted power supply, is ready to consistently provide your rig the juice it needs. With so much space, support, and stable power, this case can handle heavyweight cards like the ROG Astral GeForce RTX 5090.
The AP303 also sneaks a 34mm-wide compartment behind the motherboard, giving you ample room for hassle-free cable management. With so much space for cord cleanup, your rig can be as tidy as it is compact.
Capable, compact cooling
Beyond the room the AP303 reserves for PSUs and large graphics cards, it can also fit an AIO cooler up to 360mm long with 60mm thickness clearance — a spacious inclusion that makes connecting CPU power cables to the top edge of the motherboard a breeze. Factor in the AP303’s seven mounting points for fans, and this case is primed to keep your high-performance hardware at its healthiest.
The AP303 also uses a quasi-filter metallic mesh throughout its design. This square mesh offers heightened airflow intake, giving your internal components plenty of access to fresh air. All versions of the AP303 feature mesh elements, so no matter which chassis configuration you opt for, your rig will benefit from capable cooling.
Your desktop, your choice
For the AP303’s side panel, choose between tempered glass or quasi-filtered metallic mesh. Tempered glass gives you a clean look at your rig’s internal components — perfect for RGB enthusiasts who love to glow up their desktops with radiant hardware. Those who opt for the metallic mesh side panel can maintain a low profile while maximizing airflow. Both side panel types feature tool-free designs, meaning you can easily remove and attach the panels with just your hands.
Once you’ve decided on a side panel, there’s still one more decision to make: whether you want your AP303 in black or white. Perhaps you want a stealthy black rig that blends in with your other electronics, or maybe you’d prefer a centerpiece for your Moonlight White battlestation. Either way, the AP303 is ready to roll, and the interior cables are all color-matched to your choice for a cohesive aesthetic.
The connectivity you need
A handy USB Type-C port can provide a wealth of everyday convenience. The AP303 gives you a USB 20Gbps Type-C port on the front panel, a location that keeps it readily accessible with the chassis resting on top of your desk. Pair this chassis with a motherboard equipped with an equally fast USB 20Gbps connector to reap the benefits of speedy transfers to your peripherals, or even USB Power Delivery with fast charging support.
The AP303 also features two front-panel USB Type-A ports as well as headphone and microphone jacks. With all these connectivity options at the front of your rig, swapping out gear is an effortless experience.
Setting the standard for compact cases
The ASUS Prime AP303 reiterates our commitment to compact excellence, letting you go all-out on powerful hardware without wasting space. When you need a hefty graphics card and hardcore cooling solutions but want to maintain a tight rig, this chassis will do you proud. The AP303’s convenient connectivity, user-friendly design optimizations, and aesthetic options complete the package, ensuring the case is an ideal fit for any setup.
For information on the pricing of this computer case in your region, please contact your local ASUS representative.