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Cooler Master Elite 681 (Black)
Aquarium Mid-Tower Case + 4 120 mm LED ARGB fans
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Cooler Master Elite 681: the mid-tower case designed to showcase and cool your builds
The Cooler Master Elite 681 stands out as a new-generation mid-tower case, designed to combine spectacular aesthetics with high-end thermal performance. Featuring an impressive 270° panoramic tempered glass design, it highlights every component with a clear, elegant view, enhanced by beveled finishes for an ultra-clean look. Its dual-chamber internal architecture optimizes airflow while making cable management easier, offering up to 95 mm of dedicated space. Built to house the most powerful builds, it supports graphics cards up to 410 mm, the latest generations of GPU, as well as multiple advanced cooling solutions. With its 4 preinstalled ARGB fans, modern connectivity including high-speed USB-C, and its robust steel and tempered glass chassis, this case combines premium design, modularity, and efficiency for demanding PC enthusiasts.
A case built for performance and design
The Cooler Master Elite 681 incorporates innovative technologies that clearly set it apart on the market. Its optimized vertical airflow, capable of accommodating up to 10 fans, promotes fast, efficient heat dissipation, ideal for intensive builds. It also offers extended watercooling compatibility, including support for radiators up to 360 mm on the top and bottom, as well as a 280 mm side radiator for custom systems.ARGB lighting that can be synchronized with the motherboard, thanks to a daisy-chain connection system, enables advanced lighting customization and simplified assembly. Finally, its design with large mesh panels maximizes air intake and exhaust to maintain optimal temperatures, even under heavy load. Result: a case as powerful as it is elegant, designed for next-generation gaming and creative builds.
Main features
- Mid-tower case
- Materials: Steel and tempered glass
- Design: 270° panoramic tempered glass panels with 45° bevels
- Architecture: Dual chamber (cable management + optimized airflow)
- Ventilation: Up to 10 fans supported / 4 preinstalled ARGB fans (3 intake + 1 exhaust)
- Liquid cooling: 2 x 360 mm radiators (top + bottom) / 1 x 280 mm radiator (side)
- Airflow: Optimized vertical configuration (bottom to top)
- External ventilation: Top and bottom mesh panels
- Motherboard compatibility: ATX / Micro-ATX / ITX
- Maximum GPU length: up to 410 mm
- Maximum CPU air cooler height: 160 mm
- Maximum PSU length: 240 mm
- Expansion slots: 7
- Drive bays: 3,5" and 2,5" (depending on configuration)
- Connectivity: 1 x USB 3.1 Type-C (up to 20 Gbps) / 2 x USB 3.0
- Lighting: Motherboard-synchronizable ARGB
- Color: Black
Select your criteria
General information |
Product name |
Cooler Master Elite 681 (Black) |
Brand |
Cooler Master | |
Model |
E681-KHNN-S00 | |
Main characteristics |
Graphic card max. length |
410 mm |
Max height CPU fan |
160 mm | |
Power supply max. length |
240 mm | |
Power format |
ATX/EPS | |
Case format |
Mid tower | |
Use |
Gamer | |
Material |
Tempered glass | |
| Steel | ||
Motherboard format |
ATX | |
| E-ATX | ||
| Micro ATX | ||
| Mini ITX | ||
Power supply supplied |
No | |
Design |
Screwless fixing system |
No |
Case color |
Black | |
Front color |
Black | |
Dust filters |
3 | |
Integrated display |
No | |
Mesh front |
No | |
Glass |
Yes | |
Tempered glass |
Yes | |
Fish tank (panoramic view) |
Yes | |
LED RGB |
Yes | |
ARGB LED |
Yes | |
Water cooling compatible |
Yes | |
Motherboard connector location |
Standard connectors (on the motherboard) | |
| Connectors under the motherboard | ||
Expansion slots |
Number of PCI slots |
7 |
Low profile |
No | |
Number of invisible 3.5" slots |
1 | |
Number of 2.5" slots |
2 | |
Number of 2.5"/3.5" slots |
1 | |
Front connectivity |
Location of expansion ports |
Top |
Connector(s) available |
2 X USB 3.0 Type A Female | |
| 1 X USB 3.2 Type C | ||
| 1 X 3.5mm Jack Female Stereo | ||
Cooling |
Fan(s) included |
Yes |
Number of rear fan(s) slots |
1 X 120mm | |
Quantity of rear fan(s) supplied |
1 | |
Number of front fan(s) slots |
None | |
Quantity of front fan(s) supplied |
0 | |
Number of side fan(s) slots |
2 X 140mm | |
| 3 X 120mm | ||
Quantity of side fan(s) supplied |
3 | |
Number of above fan(s) slots |
3 X 120mm | |
| 2 X 140mm | ||
Quantity of above fan(s) supplied |
0 | |
Number of underneath fan(s) slots |
3 X 120mm | |
Quantity of underneath fan(s) supplied |
0 | |
Water cooling |
AIO radiator compatibility |
120mm radiator |
| 240mm radiator | ||
| 280mm radiator | ||
| 360mm radiator | ||
Above AIO slot(s) |
240mm radiator | |
| 280mm radiator | ||
| 360mm radiator | ||
| 120mm radiator | ||
Side AIO slot(s) |
240mm radiator | |
| 280mm radiator | ||
| 120mm radiator | ||
Rear AIO slot(s) |
120mm radiator | |
Physical characteristics |
Width |
425 mm |
Height |
400 mm | |
Depth |
285 mm | |
Volume |
48.45 l | |
Warranties |
Commercial warranty |
Seller 2 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
Cooler Master Europe BV |
Postal address |
Lodewijkstraat 1b Eindhoven, NL, 5652 AC | |
Electronic Address |
consumer_care@coolermaster.eu |
See all Cooler Master products
Product referenced on 24 Apr 2026
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