Coolermaster ATCS 840 Chassis

On First Page2. Exterior


Coolermaster have been around for many years now, manufacturing a large range of chassis, cooling products and power supplies. Today we’re going to take a look at the ATCS 840, a full tower case that Coolermaster hopes will break into the high end market when it is released next month. With many components growing in size and the demand for water cooling support increasing, they have constructed a huge full tower case designed to accommodate the modern demands of enthusiasts. Over the next few pages we’ll find out whether Coolermaster have been able to recreate the huge success of their earlier ATCS cases.

Available Color
Black / Silver
Dimension (W / H / D)
(W) 243 x (H) 580 x (D) 630 mm
(W) 9.57 x (H) 22.83 x (D) 24.80 inch
Net Weight: 13.25 kg (29.21 lb);
Gross Weight: 15.75 (34.72 lb)
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
Cooling System
Front : 230 x 30mm standard fan x 1, 700 RPM, 19 dBA (included)
Top: 230 x 30mm standard fan x 2,700 RPM, 19 dBA (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)
Expansion Slots
Power Supply
Dual Standard ATX PS2 / EPS 12V (optional)

Packaging and Bundle

Unlike many of the other case offerings we’ve seen recently, Coolermaster haven’t bothered with a fancy coloured box and just gone with plain cardboard and a black illustration. Surprisingly, it works quite well and the illustration is particularly well done.

The back of the box is actually quite cool; it has a picture of the case with all the elements separated to show its bare bones.

The Coolermaster ships with all the necessary screws, a well written instruction manual, 8 pin power extension, cable ties, a motherboard speaker, top mounted radiator/fan brackets, a PSU brace, an external air duct, and a fan gird for it.

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