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Montech Air 903 Max (Black)
A budget E-ATX airflow tower with four 140 mm fans and 360 mm radiator mounts front and top; great thermals, oscillating fan noise.
- Mid Tower
- SSI-EEB, E-ATX, ATX, Micro-ATX, Mini-ITX
- 400 mm
- 180 mm
PCPR score
8.0
Great
Best price we’ve seen
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R1
The short version
Montech's Air 903 Max is an E-ATX airflow mid tower with a metal mesh front Montech rates at 51 percent ventilation, three 140 mm ARGB fans at the front and one 140 mm fan at the rear. It fits 400 mm graphics cards, 180 mm coolers and 360 mm radiators at the top or front, with room for seven drives. Tom's Hardware reported strong thermals but noted noise that oscillates at mid fan speeds. The warranty is one year.
Pros
- Four 140 mm fans pre-installed, three of them ARGB
- 400 mm GPU and 180 mm cooler clearance
- 360 mm radiator support at front and top
- Up to two 3.5-inch and five 2.5-inch drives
Cons
- One-year warranty
- Tom's Hardware noted oscillating fan noise at 40-50% PWM
- Vertical GPU kit is sold separately
Best for
- Budget airflow builds
- Builders who need E-ATX support cheaply
J3
Full specifications
Core
- Style
- Mid Tower
Fit
- Motherboard support
- SSI-EEB, E-ATX, ATX, Micro-ATX, Mini-ITX
- Max GPU length
- 400 mm
- Max CPU cooler height
- 180 mm
- PSU support
- ATX
- Max PSU length
- 240 mm
- Expansion slots
- 7
- 3.5" bays
- 2
- 2.5" bays
- 5
Cooling
- Front radiator
- 120, 140, 240, 280, 360
- Top radiator
- 120, 140, 240, 280, 360
- Total fan mounts
- 9
- Fans included
- 4
Ports & I/O
- Front USB-C
- Yes
- Front USB-A
- 2
Physical
- Side panel
- Tempered glass
- Color
- Black
- Length
- 478 mm
- Width
- 230 mm
- Height
- 493 mm
Features
- Vertical GPU mount
- Yes
Compatibility notes
- GPU up to 400 mm and 190 mm wide; CPU cooler up to 180 mm
- ATX PSU up to 240 mm
- Radiators up to 360 mm at front and top only; no rear radiator listed
- Vertical GPU mounting needs Montech's separate kit
P1
Where to buy
- Buy from the maker
Montech official page
Direct link
- Check price on Amazon
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- See it at Best Buy
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- See it at B&H
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- See it at Micro Center
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AV1
Video reviews
Positive · Build
NO RGB done PROPERLY - Montech AIR 903 MAX
Gear Seekers
Gear Seekers assembles an all-white, RGB-free build in the Air 903 Max to show the case without lighting effects.
AV2
What reviewers and owners say
Tom's Hardware
PositiveTom's Hardware found great thermal performance from four included fans, E-ATX support and room for seven drives at a budget asking price, with oscillating noise at mid fan speeds as the main drawback.
4/5 · 2024-10-20
Read the source
Summaries are written in our words. Follow the links for each source’s own review.
R9
Common questions
Does the Montech Air 903 Max support E-ATX motherboards?
Yes. Montech lists E-ATX, ATX, Micro-ATX and Mini-ITX support, and its feature text also notes SSI-EEB compatibility.
What radiators fit in the Air 903 Max?
Montech lists 120, 140, 240, 280 and 360 mm radiators at both the top and front; no rear radiator is listed.
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