ASUS • A31 PLUS • Black
A clear view. Room to build.
The black ASUS A31 PLUS brings a panoramic front-and-side glass view to an ATX build, with four ARGB fans already fitted. Its hidden-connector motherboard support and 34mm cable compartment help organise the wiring behind the components. Plan the cooling system around the top radiator mount and the actual dimensions of the graphics card, power supply and cables.

The view
Put the build in the frame.
Front and left tempered-glass panels open the main chamber to view without a front corner pillar interrupting the presentation. The black frame and colour-coordinated internal I/O cables give components and lighting a consistent backdrop. This is the PLUS configuration with four fans, rather than an assumption that every A31 variant has the same bundle.

Airflow, included
Three at the side. One at the rear.
Three 120mm reverse ARGB fans are installed at the side and one standard 120mm ARGB fan is installed at the rear. The arrangement brings lighting into the visible chamber while leaving the top available for the chosen cooling system. The rear mount also accepts a separately selected 140mm fan; its radiator support is specified separately at 120mm.
Liquid cooling
Reserve the top for the radiator.
The top supports 120, 140, 240, 280 and 360mm radiators, with manufacturer-listed clearance of 80mm for the combined radiator-and-fan assembly. Alternatively, fit three 120mm or two 140mm top fans. Check the complete assembly, motherboard heatsinks and cable routing together; a nominal 360mm label alone does not establish every cooler combination will fit.
Build compatibility
Hide the cables, with the right motherboard.
The chassis supports ATX, Micro-ATX and Mini-ITX motherboards, including supported BTF hidden-connector layouts. A 34mm compartment behind the motherboard provides room for cable organisation. Hidden-connector support describes compatible motherboard positioning; it does not convert a conventional board into a back-connected design.
Component planning
Use the clearances as a starting point.
Allow up to 380mm graphics-card length, 165mm CPU air-cooler height and 200mm power-supply length. Leave room for connectors, cable bends and any adjacent hardware rather than filling each published limit in isolation. Seven expansion slots and two shared 2.5/3.5-inch drive positions support a range of build layouts; the two combo bays are two total drive locations.
Daily access
Connections at the front. Maintenance within reach.
Front I/O includes a USB Type-C port rated for USB 3.2 Gen 2x2, two USB 3.2 Gen 1 ports and a combined headphone/microphone connection. The motherboard must provide the appropriate internal headers for these ports to operate at their supported rates. Removable top and bottom filters make routine dust cleaning easier, while the 8-degree angled base gives the chassis its distinctive stance.

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