Re-Introducing an old friend:
ATCS 840 constitutes a classic all-aluminum design that builds on the legacy of the original ATCS design. The aluminum construction not only allows for a lighter weight but complements the thermal design seamlessly with three 230mm fans, dedicated air duct for graphics card cooling and HDD cooling module for superb cooling.
What’s New:
Extra attention was paid to make sure this elegantly designed chassis is not only easy to install but easy to maintain. This includes: slide-out motherboard tray along with cut out CPU access for easy removal, tool-free HDD casing, and patented finger pressing 5.25" drive.
Simplicity:
Lastly, it gives users the freedom to choose any components they desire, as it supports the latest standards such as E-ATX and dual PSUs.
ATCS 840 constitutes a classic all-aluminum design that builds on the legacy of the original ATCS design. The aluminum construction not only allows for a lighter weight but complements the thermal design seamlessly with three 230mm fans, dedicated air duct for graphics card cooling and HDD cooling module for superb cooling.
What’s New:
Extra attention was paid to make sure this elegantly designed chassis is not only easy to install but easy to maintain. This includes: slide-out motherboard tray along with cut out CPU access for easy removal, tool-free HDD casing, and patented finger pressing 5.25" drive.
Simplicity:
Lastly, it gives users the freedom to choose any components they desire, as it supports the latest standards such as E-ATX and dual PSUs.
Features 
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) |
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