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Thermaltake The Tower 300 Micro-Tower Chassis (Gravel Sand)

BH #THT300GS • MFR #CA-1Y4-00SGWN-00
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Thermaltake The Tower 300 Micro-Tower Chassis (Gravel Sand)
Key Features
  • Micro-ATX & Mini-ITX
  • SGCC Steel & Tempered Glass
  • 4 x Expansion Slots
  • USB-C 3.2 Gen 2 | USB-A 3.2 Gen 1
Showcase your desktop computer build with The Tower 300 Micro-Tower Chassis from Thermaltake. Designed for versatility while maintaining a compact form factor, you can install a wide range of components with a clean, minimalist aesthetic.
More Details
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Expected availability: 2-4 Weeks
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$149.99
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Thermaltake Tower 300 Micro Overview

Showcase your desktop computer build with The Tower 300 Micro-Tower Chassis from Thermaltake. Designed for versatility while maintaining a compact form factor, you can install a wide range of components with a clean, minimalist aesthetic.

Featuring three tempered glass side panels inside a sturdy gravel sand SGCC steel frame, you'll have a clear view of your internal components. You can fit a micro-ATX or mini-ITX motherboard inside alongside graphics cards up to 15.7" long without power covers (11" with power cover). Two preinstalled 140mm fans help to maintain optimal temperatures. You can install up to three 140mm fans or up to a 420mm radiator on the ventilated side panel. The front panel includes one 10 Gb/s USB-C 3.2 Gen 2 port, two 5 Gb/s USB-A 3.2 Gen 1 ports, and 3.5mm jacks for your headphones and mic.

Modular Design
With its tool-free, fully dismantlable design, Tower 300 provides easy access to almost every corner of the case.
Cooling Capabilities
In addition to including two 140mm top fans, you can install up to two separately purchased 140mm rear fans, three 140mm side fans, and one 140mm fan on the power supply cover.
Dust Protection
Filters are located on the top, rear, inner sides, and inner bottom layer.
UPC: 841163095744

Thermaltake Tower 300 Micro Specs

Key Specs
Motherboard Support
Micro-ATX, Mini-ITX
Internal Drive Bays
3x 2.5/3.5"
Expansion Slots
4 x Full Height Horizontal
Maximum GPU Length
16" / 400 mm
CPU Cooler Height
8" / 210 mm
Fans Included
Top:
2x 140 mm Non-LED (1500 rpm, 30.5 dBA)
I/O
1x USB-C (USB 3.1/3.2 Gen 2)
2x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
1x 3.5 mm Input/Output
Windowed Panel
Yes
Compatibility
Motherboard Support
Micro-ATX, Mini-ITX
External Drive Bays
No
Internal Drive Bays
3x 2.5/3.5"
Expansion Slots
4 x Full Height Horizontal
Maximum GPU Length
16" / 400 mm
CPU Cooler Height
8" / 210 mm
Supported PSU Size
ATX
Maximum PSU Length
9" / 220 mm
PSU Mounting Location
Bottom
Cooling
Fan Mounting
Top
2x 120/140 mm
Side
3x 120/140 mm
Rear
2x 120/140 mm
Internal
1x 120/140 mm
Fans Included
Top:
2x 140 mm Non-LED (1500 rpm, 30.5 dBA)
Maximum Radiator Size
Side:
420 mm
Fan Controller Included
No
Filters Included
No
Inputs / Outputs
I/O
1x USB-C (USB 3.1/3.2 Gen 2)
2x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
1x 3.5 mm Input/Output
Physical
Windowed Panel
Yes
Color
Gravel Sand Bronze
Material
Steel, Tempered Glass
Built-In Lighting
No
Tool-Less Design
Yes
Security
No
Cable Management Space
Yes
Dimensions (W x H x D)
21.7 x 13.5 x 11.1" / 551 x 342 x 281 mm
Weight
18.3 lb / 8.3 kg
Packaging Info
Package Weight
22.415 lb
Box Dimensions (LxWxH)
25.1 x 16.2 x 14.4"

Thermaltake Tower 300 Micro Reviews

Seamless build

By Yamilla
Rated 5 out of 5
Date: 2026-07-09

Wonderful tower! The colors mesh wonderfully in my office and it was so easy to build! It’s a bit bigger than I was envisioning but I have no qualms with it.

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