Cooler Master
Cooler Master QUBE 340 Micro-ATX Compact -Tower PC Case
Bottom line: The Cooler Master QUBE 340 Micro-ATX Compact -Tower PC Case is a specs-and-price decision rather than a crowd-consensus one in the pc cases category, priced around $54.99 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by Cooler Master's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
Qube 340 is a performance-ready mATX case designed for strong airflow and efficient cooling in a compact footprint. Built under Cooler Master’s Thermal Excellence philosophy, it supports larger GPUs and taller coolers while maintaining easy installation. As part of the Qube 340 family, it features modular design elements like flexible I/O placement and multiple orientation options for a versatile build experience.
SpecPicks Verdict
SpecPicks scored Cooler Master QUBE 340 Micro-ATX Compact -Tower PC Case using a rating × review-volume × price-fit model applied to published specs and reviews across the pc cases category. Cooler Master's pc cases lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for pc cases of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Modular I/O Freedom: Place It Where You Want Top - Rear, Front - Top, Top - Front, and Front - Bottom.
- 3D-Printable Add-Ons: Customize your Qube 340 with a wide range of 3D-printable accessories, including compatible add-ons designed for the QUBE 540 ecosystem.
- Generous Component Clearance: Fit high-performance hardware in a compact build with support for graphics cards up to 366 mm, including RTX 5080 | RX 9070 XT, and CPU air coolers up to 178 mm tall.
- Powerful Cooling Support: A high-airflow front panel and multiple fan and radiator mounting options help keep your system running cool and smooth.
- Compact Micro-ATX Design: Compact design that supports Micro-ATX and Mini-ITX motherboards with a footprint similar to a large LP record crate.
- Modular Handle: Placement Portable Handles Included:Reconfigurable and durable metal handles. Configure your way!
Full Specifications
| Brand | Cooler Master |
|---|---|
| Color | Black |
| Material | Metal, Tempered Glass |
| Case Type | Mini-Tower |
| Model Name | Qube 340 Black |
| Unit Count | 1.0 Count |
| Model Number | Q340-KGNN-S00 |
| Compatibility | PC |
| Cooling Method | Air, Water |
| Modular Handle | Placement Portable Handles Included:Reconfigurable and durable metal handles. Configure your way! |
| Mfr Part Number | Q340-KGNN-S00 |
| Antenna Location | Business, Gaming |
| Compatible Devices | CPU Cooler 178mm, Graphics Card 366mm (without front fan), Liquid Cooler Up to 240mm, Mini-ITX, Micro-ATX, Power Supply 200mm (without bottom fan ) |
| Enclosure Material | Metal, Tempered Glass |
| Modular I/O Freedom | Place It Where You Want Top - Rear, Front - Top, Top - Front, and Front - Bottom. |
| 3D-Printable Add-Ons | Customize your Qube 340 with a wide range of 3D-printable accessories, including compatible add-ons designed for the QUBE 540 ecosystem. |
| Warranty Description | 2 Year Manufacturer |
| Supported Motherboard | Mini-ITX, Micro-ATX |
| Compact Micro-ATX Design | Compact design that supports Micro-ATX and Mini-ITX motherboards with a footprint similar to a large LP record crate. |
| Powerful Cooling Support | A high-airflow front panel and multiple fan and radiator mounting options help keep your system running cool and smooth. |
| Full listing title | Cooler Master QUBE 340 Micro-ATX Compact -Tower PC Case - Customizable Modular Computer Chassis with Movable I/O Panel, Magnetic Dust Filters, Tempered Glass Panel & Portable Handles – Black |
Ready to buy?
Cooler Master QUBE 340 Micro-ATX Compact -Tower PC Case - Customizable Modular Computer Chassis with Movable I/O Panel, Magnetic Dust Filters, Tempered Glass Panel & Portable Handles – Black is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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