Secure Payment
Fast Delivery
Money Back Guarantee
24/7 Support
Quality Assurance
Free shipping on all orders . See details
Estimated between Oct 11, 2026 and Oct 13, 2026 Ships within 1-3 business day after payment clears. | SHOP Track Order | Ourlum Orders | Track Orders
30 days returns. 100% Money back guaranteed. See details
Montech Air 903 Max Mid Tower PC Case is offered by OurLum, a store specializing in Smart Electronic products, smart devices, and practical accessories. Match the selected configuration to the specifications and included items before ordering.
Montech AIR 903 MAX E-ATX Mid Tower Case with High Airflow & Type-C Port
Draws cool ambient air directly to your processors.
Includes three 140mm ARGB units and one standard exhaust model.
Accommodates massive 4090 graphics cards without cable interference.
You gain a dedicated workspace for high performance builds. A split design separates the motherboard area from the power shroud. Cold air flows straight across your CPU cooler.
This E-ATX mid tower supports full height motherboards. The layout organizes components cleanly while leaving ample width for heavy components.
System temperatures stay stable during intense workloads. Hot air escapes quickly through optimized vent paths. Your favorite apps run smoothly without thermal throttling.
Provides rapid file transfers outside the chassis.
Hides excess wiring to improve visibility.
Showcases your interior setup effortlessly.
Dimensions measure 18.82 inches by 9.06 inches by 19.41 inches. Total weight reaches 9.12 pounds. The exterior features a durable matte black finish. Internal materials include protected tempered glass panels. Standard ATX power mounting applies inside.
The box delivers the complete case assembly with four factory mounted fans. You receive standoffs, drive cages, and all mounting screws for immediate installation.
Unscrew the side panel to access the interior. Secure your motherboard plates to the pre set standoff positions. Route power lines into the lower compartment. Zip tie loose wires along dedicated grooves before closing up.
Future hardware swaps require zero special tools. The open workspace reduces builder fatigue during complex projects. Reliable cooling preserves component lifespan over many years.
Perfect for daily driving games and demanding video editing tasks. Handles multi monitor rigs comfortably. Keeps busy desktop corners tidy during marathon sessions.
Designed for custom PC builders seeking maximum component freedom. Enthusiasts wanting precise thermal control will love the dual chamber separation. Streamers needing quiet operation will appreciate the airflow optimization.
Does it handle large water coolers?
The upper chamber provides extra vertical clearance for radiators and bulky blocks.
Is fan direction adjustable?
The internal frame permits easy repositioning of all four units before final tightening.
Shop OurLum with confidence—secure payments, fast shipping, easy returns, order tracking, and reliable support.
At OurLum.com, we don’t just promise quality—we guarantee it. Every product is carefully selected and tested to meet real-life needs, and your satisfaction is 100% backed by our no-hassle return policy. If it doesn’t work for you, we’ll make it right—fast. Shop confidently knowing you're getting trusted products, secure checkout, and real support when you need it. Because at OurLum, your peace of mind comes first
