Montech Air 903 Base
Expert rating8 / 10
- Brand:
- Montech
- Model:
- Air 903 Base
- Case Type:
- Mid-Tower
- Motherboard Support:
- E-ATX, ATX, mATX, ITX
- Panel Type:
- Tempered glass
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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Montech Last updated: September 11, 2026
Where to buy
- NeweggGo to store
Montech Air 903 Base Review
The Air 903 Base strips down the pricier Montech Air 903 Max already covered elsewhere in Montech's own lineup, keeping the large included fans and E-ATX support while dropping some of the Max variant's extra features to hit a lower price point.
Three pre-installed 140mm PWM fans move more air per fan than the smaller 120mm units common at this price tier.
Large 140mm Fans at a Budget Price
Three pre-installed 140mm PWM fans move more air per fan than the smaller 120mm units common at this price tier, giving the Air 903 Base genuinely competitive thermal performance for the money.
E-ATX Support Without Flagship Pricing
Supporting E-ATX motherboards and graphics cards up to RTX 4090 length at a budget price point undercuts many similarly-specced competitors, reflecting Montech's positioning as a value-focused brand.
Comparison to Alternatives
Against the Montech Air 903 Max already on this site, the Base variant drops some premium features for a lower price while keeping the same core fan and motherboard support specs. Against the Corsair 4000D Airflow covered in this batch, the Air 903 Base offers larger 140mm fans and E-ATX support at a similar or lower price point.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
E-ATX support and three 140mm fans at a genuinely budget price.
Best for
- Budget builders who want E-ATX support and large pre-installed fans without paying for the pricier Max variant.
Not for
- Buyers who want the Air 903 Max's additional premium features.
Specifications
What these specs meanIdentity
| Brand | Montech |
|---|---|
| Model | Air 903 Base |
| Typical Price | 85 USD |
Design
| Motherboard Support | E-ATX, ATX, Micro-ATX, Mini-ITX |
|---|---|
| Case Type | Mid-Tower |
| Panel Type | Tempered glass |
Clearance & Cooling
| GPU Clearance | 400 mm |
|---|---|
| CPU Cooler Clearance | 180 mm |
| Included Fans | 3 |
| Radiator Support | Front 360mm, top 360mm |
| Front USB-C | Yes |
Class and layout
| Chassis Layout | Mesh front, 3x 140mm pre-installed PWM fans |
|---|---|
| Height | 493 mm |
| Width | 230 mm |
| Depth | 478 mm |
Motherboard support
| Max Motherboard Size | E-ATX |
|---|
Component clearance
| PSU Max Length | 240 mm |
|---|
Power supply
| PSU Form Factor | ATX |
|---|---|
| PSU Shroud | Yes |
Liquid cooling
| Max Radiator Front | 360 mm |
|---|---|
| Max Radiator Top | 360 mm |
Fan support
| Included Fan Count | 3 |
|---|---|
| Included Fans RGB | No |
| Max Fan Count | 9 |
Storage and expansion
| 2.5in Bays | 5 |
|---|---|
| 3.5in Bays | 2 |
| Expansion Slots | 7 |
Panels and materials
| Side Panel Material | Tempered Glass |
|---|
Front I/O and display
| Front USB-A Ports | 2 |
|---|
FAQs
What are the key specifications of the Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)?
Key specs for the Montech Air 903 Base: PSU Form Factor ATX, GPU Clearance 400 mm, CPU Cooler Clearance 180 mm, Included Fans RGB No, Radiator Support Front 360mm, top 360mm, Case Type Mid-Tower.
Will the Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow) work with my current setup?
The Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow) lists Motherboard Support is E-ATX, ATX, Micro-ATX, Mini-ITX. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow) best suited to?
Best suited to: Budget builders who want E-ATX support and large pre-installed fans without paying for the pricier Max variant.
What are the drawbacks of the Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)?
Not the best fit for: Buyers who want the Air 903 Max's additional premium features.
Compare and read more
- ASUS TUF Gaming GT502 (Mid-Tower ATX/Mesh Front Panel/3x 140mm ARGB Fans/360mm Radiator Support) vs Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)
- be quiet! Dark Base 901 (Full-Tower E-ATX Support/Tool-Free Tempered Glass/3x Silent Wings 4 Fans Included/Premium Silent Flagship) vs Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)
- Corsair iCUE Link 3500X (Mid-Tower ATX/Dual-Chamber Tempered Glass/3x QX120 iCUE Link RGB Fans Included/Single-Cable Fan Hub) vs Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)
- Deepcool CH780 (Full-Tower E-ATX Support/Dual-Chamber Panoramic Glass/4x 140mm ARGB Fans Included/High-Capacity Showcase) vs Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)
- FormD T1 (Mini-ITX SFF/CNC Aluminum Shell/Boutique Small Form Factor/Fans Not Included) vs Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)
- Hyte Y70 Touch (Mid-Tower ATX/Panoramic Glass with Built-In Touchscreen/4x 120mm ARGB Fans Included/Showcase Flagship) vs Montech Air 903 Base (Mid-Tower E-ATX Support/3x 140mm Pre-Installed PWM Fans/Mesh Front/Budget Airflow)
- GPU Clearance Numbers Are Wrong If You're Also Running a Front Radiator
- Will It Fit? PC Case Clearance for GPUs, Coolers and Radiators