Thermalright A70 vs Montech AIR 903 Base Case Comparison

Thermalright A70 and Montech AIR 903 Base are both cases with the same Internal 3.5" Drive Bays (2), Front Panel I/O (USB 3.2 Gen 1 Type A, USB 3.2 Gen 2 Type C) and Expansion Slots (7). The main differences are in Internal 2.5" Drive Bays, Motherboard Compatibility, Dimensions and Volume.

Save comparison

Thermalright A70	Montech AIR 903 Base
Prices (Change region) In Stock $102.32 Last updated 30 minutes ago.	Prices (Change region) Out of Stock Free shipping $65.00 Out of Stock $65.00 Out of Stock Free shipping $72.49 - Buy now Show 1 more offers
* Pangoly may earn a commission when you use one of the links to make a purchase. (Disclosure) * Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand Thermalright	Brand Montech
Model TR-A70	Model AIR 903 BASE (B)
Release Date 📅 April 2026	Release Date 📅 June 2023
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Motherboards ► Graphics Cards ► Power Supplies ► CPU Coolers ►	Compatible PC parts Motherboards ► Graphics Cards ► Power Supplies ► CPU Coolers ►
Type ATX Mid Tower	Type ATX Mid Tower
Color Black	Color Black
Includes Power Supply No	Includes Power Supply No
External 5.25" Drive Bays 0	External 5.25" Drive Bays 0
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2	Internal 2.5" Drive Bays 3
Internal 3.5" Drive Bays 2	Internal 3.5" Drive Bays 2
Motherboard Compatibility ATX, Micro ATX, Mini ITX	Motherboard Compatibility ATX, EATX, Micro ATX, Mini ITX
Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2 Type C	Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2 Type C
Dimensions 450.8 mm x 289.5 mm x 477 mm	Dimensions 478 mm x 230 mm x 493 mm
Volume 62 L	Volume 54 L
Max VGA length allowance 420 mm	Max VGA length allowance 400 mm
Expansion Slots 7	Expansion Slots 7
Back Connect Support Yes	Back Connect Support No