Archive Home arrow Reviews: arrow Cases arrow Cooler Master ATCS 840 Computer Case RC-840

Cooler Master ATCS 840 Computer Case RC-840 E-mail
Reviews - Featured Reviews: Cases
Written by Olin Coles   
Tuesday, 18 November 2008
Table of Contents: Page Index
Cooler Master ATCS 840 Computer Case RC-840
Features and Specifications
Closer Look: ATCS 840 Exterior
Detailed Exterior Features
Closer Look: Interior and Pressure
Detailed Interior Features
Computer Chassis Final Thoughts
RC-840-KKN1-GP Conclusion

CM RC-840 Features

Independent GPU cooling

  • High-end graphic cards temperatures can be reduced by 3~5°C

Dual PSUs System

  • PSU could be mounted on top or bottom for flexible installation or dual PSU configuration

Advanced Cooling System

  • Front fan: 23030 mm x 1
  • Top fan: 23030mm x 2
  • Rear fan : 12025 mm x 1
  • Bottom fan :120mm (optional)
  • Air duct with 120mm fan
  • HDD fan: 120mm x 2 (optional)
  • Support high end CPU cooler (the cooler should be lower than 200mm)
  • Support the radiator with three 120mm fans

Ergonomic Design

  • Slide-out M/B tray
  • Easy CPU cooler changing
  • Top I/O panel
  • Tool free 5.25" system
  • Tool free HDD system
  • Washable air filter
  • Cable Management system for routing and neatness

RC-840-KKN1-GP Specifications


Model RC-840-KKN1-GP (black)
RC-840-SSN1-GP (silver)
Available Color Black, Silver
Dimension (W) 9.57 x (H) 22.83 x (D)24.80 inches
Weight Net Weight: 13.25 kg (29.21 lbs);
Gross Weight: 15.75 kg ( 34.72 lbs)
Motherboards Micro-ATX / ATX / E-ATX
5.25" Drive Bay 6 Exposed (without the use of exposed 3.5" drive bay)
3.5" Drive Bay 6 Hidden
1 Exposed (converted from one 5.25" drive bay)
I/O Panel USB x 4, IEEE 1394a x 1, eSATA x 1, Mic x 1, Audio x 1
Expansion Slots 7
Cooling System Front: 230 x 30 mm standard fan x 1, 700 RPM, 19 dBA (included)
Top: 230 x 30mm standard fan x 2, 700 RPM, 19dBA (included)
(can be swapped for three 120mm fans)
Rear: 120 x 25mm standard fan x 1, 1200 RPM, 17 dBA (included)
Bottom: 120mm (optional)
HDD Module: 120mm fan x 2 (optional)
External Air Duct: 120mm fan x 1 (optional)
Power Supply Dual Standard ATX PS2 / EPS 12V (optional)
UPC Code 884102002458 (black)
884102002441 (silver)



# mrjd 2010-03-31 18:15
I was wondering if you supply replacement parts ATCS 840 Computer Case RC-840 such as;
1. Front panel
2. HDD racks
3. HDD fan bracket
Report Comment
# MrJim H 2012-06-30 04:57
Hello, i`m looking to purchase the RC-840-KKN1-GP Coolermaster ATCS 840, wondering if you can help me find one, thanks, Jim
Report Comment
# RE: Cooler Master ATCS 840 Computer Case RC-840David Ramsey 2012-06-30 07:26
A search on eBay turned up one in Germany for $325...
Report Comment

Comments have been disabled by the administrator.

Search Benchmark Reviews

Like Benchmark Reviews on FacebookFollow Benchmark Reviews on Twitter