Montech AIR 903 MAX Black

Brand: Montech
Model: AIR 903 MAX Black

$76–$84estimated range · from catalog price Sep 28, 2026Seen 11% off

Montech AIR 903 MAX (2023) budget E-ATX mid-tower with 4x 140mm fans, 360 mm rad support, 400 mm GPU and 180 mm cooler clearance, high-airflow mesh panel.

TierBudget?

ReleasedJun 2023

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Form factorATX, mATX, Mini-ITX

ColorBlack

Tempered glassYes

Max GPU length400 mm

GixCore Editorial

Product overview

Released June 27, 2023 as part of Montech’s AIR 903 family (Base and Max), the AIR 903 MAX is a high‑airflow E‑ATX mid‑tower case. It is not discontinued.

Positioned in the budget tier, it exists to deliver big‑case compatibility and cooling at a low price. It fits E‑ATX/ATX/mATX/ITX (true E‑ATX/SSI‑EEB), clears 400 mm GPUs and 180 mm tower coolers, and supports 360 mm radiators at the top and front. The case ships with 3x 140 mm ARGB + 1x 140 mm PWM fans, uses an ATX PSU, has a tempered‑glass side and mesh front, front I/O with USB‑C + 2x USB 3.0, and room for up to seven drives. Notably, it brings SSI‑EEB support to a budget mid‑tower.

Best for

airflow builds
water cooling/radiators
budget builds
high GPU clearance
showcase/RGB

Specifications

At a glance iEach dot represents a catalog model. Farther right means a higher measured value, not necessarily a better fit.Measured against the cases catalog

Current modelCatalog models

Max GPU length400 mm

Higher than 60% of cases

Form factor: ATX, mATX, Mini-ITX
Color: Black
Tempered glass: Yes
Max GPU length: 400 mm
Dimentions: 18.82 x 9.06 x 19.41 in
Weight: 17.31 lb
I O Ports: 1x USB Type-C, 2x USB 3.0
Expansion Slots: 7
Max Cooler Height: 180 mm
Radiator Support: Front 120/140/280/360 mm, Top 120/140/280/360 mm, Rear 120 mm
Psu Form Factor: ATX