The specs say there are drive bays. I don't see any drive bays in the pictures. Where are HDD drives supposed to go?

The HDD drives can go in the bottom compartment near the power supply. The SSD drives have a slot on the side of the tower, underneath the right side case cover, which is removable.

What is the quality of this case considering its affordable price?

The Montech AIR 903 BASE E-ATX Mid Tower Case is praised for its high-quality construction and features, which are considered to be of great value for the price. Users highlight its spacious interior, ease of building and cable management, and pre-installed fans providing good airflow.

Is cable management easy with this case?

The case is praised for its ease of building and cable management.

How is the airflow in this case?

The case is designed for high airflow, featuring a metal front panel with a 51% ventilation rate and three pre-installed high-performance cooling fans.

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ETA Date: 10/2/2025.

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

Alt view image 2 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 3 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 4 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 5 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 6 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 7 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

Alt view image 8 of 8 - Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 140mm PWM Fans Pre-installed, Tempered Glass Side Panel, Mesh Front, TYPE-C, Support 4090 GPUs, Black

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

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Options: Base (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.
Take your cooling to new heights with the three pre-installed HP140 high-performance cooling fans, offering exceptional airflow and ensuring efficient heat extraction from the case.
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	#37 in Computer Cases

Model
Brand	Montech

Details
Type	E-ATX Mid Tower Chassis
Color	Black
Motherboard Compatibility	ATX / E-ATX / Micro ATX / Mini ITX
Dust Filters	Bottom / Top

Expansion
Internal 3.5" Drive Bays	2
Internal 2.5" Drive Bays	5 (Maximum) (2.5” SSD*3 are supported with E-ATX MB installed)
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	3

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

Additional Information
Date First Available	September 22, 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

Best Sellers

Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 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-00057

Backordered Items

Best Sellers

Montech AIR 903 BASE, E-ATX Mid Tower Case, High Airflow with Max Capacity, 3x 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