ASUS
ASUS A31 TG Black PC case ATX Mid Tower
ATX mid-tower with dual frameless tempered glass panels, 360 mm top radiator support, 380 mm GPU clearance and 34 mm cable-routing depth
- TypeATX Mid Tower
- ColorBlack
- Case MaterialSteel / Plastic / Tempered Glass
- Motherboard CompatibilityATX / Micro ATX / Mini ITX
- Dust FiltersBottom / Top
- Internal 3.5" Drive Bays2
Options Black
- Black
- White
- Clean, clutter-free interior backed by hidden-connector motherboard support
- Unobstructed component views through dual frameless tempered-glass panels
- High-end cooling capacity with 360 mm radiator support at the top
- Fits flagship graphics cards up to 380 mm long
- Efficient airflow and wider viewing angle from 8° angled base
ATX Mid-Tower with Dual Tempered Glass
The ASUS A31 TG Black is an ATX mid-tower chassis built around dual tempered-glass side panels and a frameless, pillar-free layout. It accepts ATX, Micro-ATX and Mini-ITX motherboards, including models with rear-mounted hidden connectors for a cleaner internal appearance. The case provides 34 mm of cable-routing space behind the motherboard tray.
Builders wanting a showcase interior
This chassis suits users who want a wide-open view of components and native compatibility with motherboards that route power and data cables to the rear. It is less suited for builders who need more than two 3.5-inch or two 2.5-inch drive bays, or who require radiator mounting locations beyond the top and rear panels.
380 mm maximum graphics-card length
The case accommodates graphics cards up to 380 mm long, covering current flagship models such as the RTX 4090 and RTX 5090. This single dimension determines whether a chosen card will fit without modification or a different chassis.
Highlights
- Clean, clutter-free interior backed by hidden-connector motherboard support
- Unobstructed component views through dual frameless tempered-glass panels
- High-end cooling capacity with 360 mm radiator support at the top
- Fits flagship graphics cards up to 380 mm long
- Efficient airflow and wider viewing angle from 8° angled base
Specifications
| Brand | ASUS |
|---|---|
| Series | A31 TG |
| Type | ATX Mid Tower |
| Color | Black |
| Case Material | Steel / Plastic / Tempered Glass |
| Motherboard Compatibility | ATX / Micro ATX / Mini ITX |
| Dust Filters | Bottom / Top |
| Internal 3.5" Drive Bays | 2 |
| Internal 2.5" Drive Bays | 2 |
| Expansion Slots | 7 |
| Fan Options | Bottom - 3 x 120mm / Rear - 1 x 120mm / Rear - 1 x 140mm / Side - 3 x 120mm / Top - 2 x 140mm / Top - 3 x 120mm |
| Radiator Options | Rear - Up to 120mm / Top - Up to 360mm |
| Max GPU Length | 380 mm |
| Max CPU Cooler Height | 165 mm |
| Max PSU Length | 200 mm |
| Dimensions | 20.12" x 9.37" x 17.13" |
| Shipping weight | 8.17 kg |
| Package size | 584 × 508 × 305 mm |
Other versions of this model
1 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
Questions about this item
How much clearance does the ASUS A31 TG Black allow for a top-mounted 360 mm radiator?
The case provides 80 mm of clearance above the motherboard for thick radiators and fans, so a 360 mm AIO fits without interfering with RAM or VRM heatsinks.
Which screw do builders most often forget when installing the dual tempered-glass panels on the A31 TG?
The frameless glass panels hinge on the front edge and latch at the rear; the step people miss is re-inserting the single thumb-screw that locks the rear latch after the panel is swung shut.
How often should the bottom and top dust filters be cleaned on this case?
Pull out the magnetic filters every month or two and rinse them; clogged filters restrict the three bottom 120 mm intakes and the top exhaust, raising GPU and CPU temperatures.
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