Casesmontech
Montech AIR 903 Base Midi-Tower Tempered Glass - Black
MPN: AIR 903 BASE B
Key specifications
Max GPU400 mm
Max Cooler180 mm
Max PSU240.0 mm
Form factorE-ATX
Full Specifications100 fields
Additional Contents
Fans Included
Yes
Included Fans
3x 140 mm
Additional Information
Model Number
AIR 903 BASE B
Gtin
4710562743784
Back Connect
Back Connect
No
Cable Specifications
Riser Cable Included
No
Case
Case Type
Mid Tower
Case Features
I O Position
Top
Side Panel
with window
Vertical Gpu Mount
No
Adjustable Vertical Gpu Bracket
No
Front Door
No
Cable Management
Yes
Filters Included
Yes
Filter Position
Top, Bottom
Noise Dampening
No
Mainboard Slide Tray
No
Transport System
No
Chassis Physical Specifications
Colour
Black
Chassis Construction Materials
-
Dimensions
230 x 493 x 478 (WxHxD mm)
Weight
7.6 kg (Approx)
Package Type
-
Please Note
-
Clearances
Cable Routing Space
-
Colour
Primary Colour
Black
Compliance
Compliance Documents
Montech Case Compliance and Safety
Connectivity
Card Reader
No
Core Chassis Specifications
Edition
AIR 903 BASE Black
Case Form Factor
E-ATX
Motherboard Form Factor
ATX
E-ATX
MicroATX
Mini-ITX
Back Connect Compatible
No
Dimensions
Length Depth
478 mm
Width
230 mm
Height
493 mm
Display
Display Included
No
Drive Bays
Max 2 5 Inch Drives
5
Max 3 5 Inch Drives
2
Max 5 25 Inch Drives
0
2 5 Inch Internal Drive Bay
3
1x 3 5 1x 2 5 Inch Internal Drive Bays Combined
2
Hot Swap Drive Bays
No
Expansion Slots
Expansion Slots Pci Slots
7
External Ports
Front I O Usb Type C Ports Total
1
Front I O Usb Type A Ports Total
2
Usb 3 1 External Type C
1
Usb 3 0 External Type A
2
Audio Outputs Inputs
1x output + 1x input (3.5 mm jack, 3-pin, TRS)
Fan Header
Fan Controller Fan Hub
No
Fans & Filters
Fan Bays
9 x 120mm / 7x 140mm
Fan Controller Hub
-
Dust Filters
Bottom
Top
Fan Support
Max Number Of Fans
9
Case Fan Support Top
120mm Fan (3x), 140mm Fan (2x)
Case Fan Support Front
120mm Fan (3x), 140mm Fan (3x)
Case Fan Support Rear
120mm Fan (1x), 140mm Fan (1x)
Case Fan Support Bottom
120mm Fan (2x)
120 Mm Fans
9
140 Mm Fans
6
Features
Housing Feedthrough
No
Internal Dimensions
Max Cooler Height
180 mm
Max Gpu Length
400 mm
Max Psu Length Depth
240 mm
I/O, Bays & Expansion
Front Side Top Panel I O
1 x LED Control Button
1 x Line Out
1 x Mic In
1 x Reset Button
2 x USB 3.0
1 x USB Type-C
Drive Bays
5 x 2.5" Internal
2 x 3.5"
Standard Expansion Slots
7
Vertical Expansion Slots
-
LED Lighting Functionality
Led Lighting
No
Led Lighting Emitters
-
Led Lighting Colour
-
Led Lighting Support Control
-
Lighting
Lighting Rgb
No
Liquid Cooling Support
Front Radiator Compatibility
1 x 120/140/240/280/360mm
Top Radiator Compatibility
1 x 120/140/240/280/360mm
Bottom Radiator Compatibility
-
Rear Radiator Compatibility
-
Side Radiator Compatibility
-
Materials
Materials
Plastic, Steel, Tempered Glass
Motherboard Support
Compatible Motherboard Formats
E-ATX, ATX, Micro-ATX, Mini-ITX
Max Motherboard Format
E-ATX
Mounting
Internal Monitor Mount
No
Case Vesa Mountable
No
Power Supply
Psu Included
No
Psu Format
ATX
Power Supply Position
rear bottom
Power Supply Compatibility
Psu Wattage If Included
-
Psu 80 Rating If Included
-
Psu Support
ATX
Psu Mounting Location
Bottom Mount, Rear
Max Psu Length
-
Radiator Support
Radiator Aio Support Front
120mm Radiator, 140mm Radiator, 240mm Radiator, 280mm Radiator, 360mm Radiator
Max Radiator Compatibility
2x Triple (360 mm)
Radiator Aio Support Top
120mm Radiator, 140mm Radiator, 240mm Radiator, 280mm Radiator, 360mm Radiator
Side Panels
Window S
Yes
Window Configuration
1 x Main Side
Window Construction
-
Best indexed price
£56.04GBP
Indexed 25 May 2026 — verify at retailer
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