Is the CH Monte|AIR 903 MAX (B) R case easy to assemble for a beginner?

It was very straight forward to build in. There's a ton of room, this case is considered a mid tower but can fit any size motherboard. There's also a small hub on the side that connects all the fans into one place. This makes it very easy to connect the fans to the motherboard. Overall, a fun experience to build in.

Does this case really have space for 5 3.5 hard drives? or are the specs wrong?

it has space for 5 2.5 inch hard drives aka sdds it only has room for 2 3.5 inch drives.

Is this case compatible with back connect motherboards?

I wouldn't recommend it. I remember feeling like the back was a tight fit for my cables.

Does this case have a space for a DVD drive?

No, it's not built to add a DVD drive to.

Is the CH Monte|AIR 903 MAX (B) R case a good value for the price?

The Montech AIR 903 MAX is regarded as a good value for its price due to features like high airflow, spacious interior, good build quality, and included fans with RGB functionality.

Does the case come with pre-installed fans?

Yes, the case comes with 3x 140mm ARGB PWM fans and 1x 140mm PWM fan pre-installed.

Can I fit any 140mm fan in this case?

Yes, the case supports 140mm fans in the front, rear, and top positions.

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ETA Date: 9/16/2025.

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Main image of Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 2 of 6 - Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 3 of 6 - Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 4 of 6 - Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 5 of 6 - Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 6 of 6 - Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

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Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

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Options: Max (Black)

Max (White)
Max (Black)
Base (Black)
Base (White)
Air 100 ARGB (White)
Air 100 ARGB (Black)

Unleash unparalleled cooling performance and superior thermal efficiency with the innovative metal front panel featuring a staggering 51% ventilation rate, creating the ultimate gaming experience.
Meticulously designed mesh front panel acts as a formidable dust filter, allowing for effortless dismantling and easy cleaning while maintaining optimal airflow.
Experience a mesmerizing gaming wonderland with the AIR 903 Max. 3 x HP140 ARGB fans and advanced LED/PWM control deliver 21 captivating lighting effects for a vibrant masterpiece.
Achieve optimal heat dissipation with the versatile design, supporting 360mm AIO coolers at the front and top, while offering ample 180mm height clearance for powerful CPU tower coolers.
Accommodate graphics cards up to 400mm in length and 190mm in width, including popular giants like the NVIDIA® GeForce RTX® 40 series.

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

Specs

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Best Seller Ranking	#3 in Computer Cases

Model
Brand	Montech
Series	AIR 903 MAX

Details
Type	E-ATX Mid Tower Chassis
Color	Black
With Power Supply	No
Motherboard Compatibility	ATX / E-ATX / Micro ATX / Mini ITX
Side Panel Window	Yes
Dust Filters	Bottom / Top

Expansion
Internal 3.5" Drive Bays	5
Internal 2.5" Drive Bays	2
Expansion Slots	7

Front Panel Ports
Front Ports	1 x USB Type-C, 2 x USB 3.0, 2 x Audio

Cooling System
Fan Options	Front - 3 x 120mm / Front - 3 x 140mm / Rear - 1 x 120mm / Rear - 1 x 140mm / Top - 2 x 140mm / Top - 3 x 120mm
Radiator Options	Front - Up to 360mm / Top - Up to 360mm
140mm Fans	4

Dimensions & Weight
Max GPU Length	400 mm
Max CPU Cooler Height	180 mm
Max PSU Length	240 mm

Additional Information
First Listed on Newegg	July 19, 2023

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Return for refund within: 30 days

Return for replacement within: 30 days

This item is covered by Newegg.com's 30-Day Return Policy. Read full return policy for details.

Backordered Items

Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Learn more about the Detailed Specifications

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Manufacturer Contact Info

Item#: 2AM-00CN-00059

Backordered Items

Montech AIR 903 MAX, E-ATX Mid Tower Case, High Airflow, 3x 140mm ARGB PWM & 1x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Learn more about the Detailed Specifications

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Manufacturer Contact Info