Asus A31 PLUS Mid Tower ATX Chassis
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ASUS

Asus A31 PLUS Mid Tower ATX Chassis

In stock SKU A31PLUS-BK
R 2 199,00

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  • Free courier delivery over R2 500 Anywhere in South Africa. R180 on orders under R2 500
  • Official warranty Local South African warranty and support
  • Expert help Talk to a builder before you buy
Full description and specifications

Build the setup you’ve always imagined with the ASUS A31 PLUS Mid Tower, a case designed to match your ambition. Whether you’re upgrading or starting from scratch, this chassis gives you the performance headroom, visual impact, and build flexibility to bring your desktop gaming rig to life.

You’ll enjoy wide motherboard support, including ATX, Micro-ATX, Mini-ITX, and BTF compatibility, giving you the freedom to build with future-ready components. The ASUS A31 PLUS Mid Tower doesn’t just house your hardware – it showcases it. With 4 mm tempered glass panels on both the front and left sides, your RGB lighting, clean cable runs, and premium components are always on full display.

Out of the box, you get four pre-installed ARGB 120 mm fans – three mounted on the side and one at the rear – delivering strong airflow and stunning lighting without the need for additional upgrades. Cooling flexibility is extensive, with support for up to three 12 mm or two 140 mm fans on the top, and space for a 140 mm or 120 mm fan at the rear. Radiator support includes 360 mm, 280 mm, 240 mm, 140 mm, and 120 mm options on the top, plus a 120 mm radiator at the rear.

Internally, there’s space to support high-performance components, including graphics cards up to 380 mm in length, CPU air coolers up to 165 mm in height, and power supplies up to 200 mm long. Two combo drive bays accommodate either 2.5″ SSDs or 3.5″ HDDs, giving you storage flexibility without sacrificing space. Seven expansion slots ensure full upgrade capability, whether you’re adding capture cards, GPUs or high-speed networking.

The front I/O is built for speed and convenience, featuring one USB 3.2 Gen 2×2 Type-C port, two USB 3.2 Gen1 ports, and a 3.5 mm combined headphone/microphone jack. With 34 mm of cable management space and removable dust filters at the top and bottom, you’ll find it easy to keep things clean and efficient over the long run.

Measuring 23.8 x 51.1 x 43.5 cm and weighing 9100 g, the ASUS A31 PLUS Mid Tower strikes the perfect balance between size, durability and airflow — giving you a solid foundation to build a high-performance gaming PC you can be proud of.

FEATURES:

  • Compatible with ATX, Micro-ATX, Mini-ITX, and BTF motherboards
  • Dual 4 mm tempered glass panels on the front and left side
  • Includes 4 pre-installed ARGB 120 mm fans for vibrant cooling
  • Top panel supports up to 360 mm radiators for advanced thermal performance
  • Supports high-performance GPUs up to 380 mm in length
  • Spacious interior with 165 mm CPU cooler clearance and 200 mm PSU support
  • Front I/O includes USB 3.2 Gen 2×2 Type-C and dual USB 3.2 Gen1 ports
  • 7 expansion slots for multi-GPU and add-in card configurations
  • Removable dust filters on top and bottom for easy cleaning
  • 34 mm cable management clearance for neat, efficient builds
  • Two combo drive bays for flexible 2.5″/3.5″ storage options
  • Sleek ASUS A31 PLUS Mid Tower design balances airflow, space, and aesthetics

SPECIFICATIONS:

  • Case Size: Mid Tower
  • Motherboard Support:
    • BTF motherboard compatible
    • Mini-ITX
    • Micro-ATX
    • ATX
  • Drive Bays: 2 x 2.5″/3.5″ Combo Bay
  • Expansion Slots: 7
  • Front I/O Port:
    • 1 x USB 3.2 Gen 2×2 Type C
    • 2 x USB 3.2 Gen1
    • 1 x headphone / Microphone
  • Tempered Glass:
    • Left Side
    • Front Side
  • Radiator Support (Top):
    • 360 mm
    • 280 mm
    • 240 mm
    • 140 mm
    • 120 mm
  • Radiator Support (Rear): 120 mm
  • Cooling Support (Top):
    • 2 x 140 mm
    • 3 x 120 mm
  • Cooling Support (Rear):
    • 1 x 140 mm
    • 1 x 120 mm
  • Pre-installed Fans (Rear)
    • ARGB
    • 1 x 120 mm
  • Pre-Installed Fan (Side)
    • ARGB
    • 3 x 120 mm
  • Maximum CPU Cooler Height: 165 mm
  • Maximum GPU Length: 380 mm
  • Maximum PSU Length: 200 mm
  • Removable Dust Filters:
    • Bottom
    • Top
  • Maximum Cable Management Space: 34 mm
  • Dimensions: 23.8 x 51.1 x 43.5 cm
  • Weight: 9100 g
  • BTF motherboard compatible: Yes

WHAT’S IN THE BOX:

  • Asus A31 PLUS Mid Tower ATX Chassis x1

Key details

Motherboard supportATX, Micro-ATX, Mini-ITX
Max card length380 mm
Max cooler height165 mm
Radiator support120, 140, 240, 280, 360 mm
CategoryChassis
BrandASUS
Warranty2 Years
Questions

Before you buy

Will my graphics card fit in this case?
It takes cards up to 380mm long. Every graphics card we list shows its length on the Specifications tab, so compare the two numbers and leave a few millimetres for the power connectors. Front-mounted radiators and fans usually eat into that clearance - the case manual will say by how much.
What CPU cooler will fit?
Air coolers up to 165mm tall, and liquid cooler radiators of 120, 140, 240, 280, 360mm. Cooler height is measured from the motherboard surface to the top of the heatsink, and it is the dimension that most often catches people out with a side panel that will not close.
Which motherboards does it take?
It accepts ATX, Micro-ATX, Mini-ITX boards. A case always takes its own size and anything smaller, so there is no harm in fitting a compact board in a larger case beyond a little wasted space.
Is it in stock, and when will it ship?
Yes - this one is in stock. Order before 12:00 on a working day and it ships the same day; after that it goes out the next working day. We are open 09:00 to 16:30, Monday to Friday, so an order placed over a weekend or a public holiday ships on the next working day.
What does delivery cost, and how long does it take?
We deliver by courier anywhere in South Africa, and delivery is R180 on orders under R2 500 and free on orders of R2 500 or more. It takes 1-3 working days to Johannesburg, Pretoria, Cape Town, Durban and areas within 100km of them, and 2-4 working days to areas more than 100km from a major centre, counted from the day the order is dispatched. Need it sooner? Express delivery is 1-2 working days for R210, or R150 on orders of R2 500 or more - choose it at checkout. We do not ship outside South Africa.
Can I collect instead of having it delivered?
Yes. Collection is from 11 Voortrekker Avenue, Edenvale, Gauteng, by arrangement - message us first so we can have the order picked and waiting. We are open 09:00 to 16:30, Monday to Friday.
What warranty does it carry, and how do I claim?
The warranty period for this product is listed at the end of the Specifications section above. Claims go through us, not the manufacturer - contact us with your order number and a description of the fault and we will handle it from there. Separately from any warranty, the Consumer Protection Act gives you six months from delivery to return goods that are defective, unsafe or not fit for their intended purpose.
What if I change my mind?
You have 14 days from delivery to change your mind - longer than the seven days the Electronic Communications and Transactions Act requires. The item needs to be unused and in its original packaging, and we pay the return shipping. Refunds go back to the payment method you used, within 30 days of the return reaching us.
How can I pay?
Payments are processed by Stitch. At the last step of checkout you are taken to Stitch’s secure page to pay, and brought back here once it is done. Your card details are entered on Stitch’s secure, PCI-compliant page and never touch our systems.

Something not covered here? Read the full FAQ, or WhatsApp us on 079 491 0181.

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