Thanks! So I guess the HAF 932 holds your main PC? Damn you have a lot of rigs. I've actually written something on the differences between the HAF 932 and ATCS 840, here they are.
- Construction - The HAF 932 is made of steel and plastic, while the ATCS 840 is aluminum. Aluminum is lighter and the ATCS 840 is a more sturdy overall. The ATCS 840 is much larger than the already large HAF 932, and only weighs .11 pounds more.[/*:m:2490yd3i]
- Water Cooling Potential - While the HAF 932 comes with a liquid coolant fillport built in, water cooling potential is still worse. You're limited to a 120mm/140mm radiator on the rear, and 360 radiator on the top, but with modding you can use a triple 140mm radiator on top. You'll have to cut out the mesh to use an external radiator. On the ATCS 840 you can have a 120mm radiator on the rear, 360 radiator on the top (with modding you can use a triple 140mm radiator or even a 480 radiator, external or internal due to easy remove mesh cover with two thumbscrews), 240 radiator in the HDD cage, and a 120 radiator or even a 240 radiator in the external air duct.[/*:m:2490yd3i]
- Dust - The HAF 932 has no dust filters. The ATCS 840 has dust filters on every intake fan, the front 230mm intake fan (two dust filters, the main one is easy to remove, a small one on the bottom of the case needs to be unscrewed), bottom 120mm intake fan (very necessary so your PC won't act like a vacuum cleaner if it is on the floor), and PSU intake (also necessary so your PSU won't be a vacuum cleaner). [/*:m:2490yd3i]
- Noise - The HAF 932 isn't that loud, but the ATCS 840 is near silent. The only components I can hear in my PC without putting my ear to the side panel (I have the ATCS 840) are the GTX 260 and radiator fan. The included 230mm fans are silent spinning at 700 RPM (same fans the HAF 932 uses) - same goes to the included 120mm fan, which sadly only spins at 1050-1100 RPM.[/*:m:2490yd3i]
- Ease of use - They both have tool less 3.5"/5.25" drive bays, but the ATCS 840 has a slide out MOBO tray which is a huge plus. The HAF 932 has tool less expansion slots unlike the ATCS 840, which can also use screws. The ATCS 840 uses regular screws, but they are accessed outside of the case.[/*:m:2490yd3i]
- Size - this can go both ways. The ATCS 840 is a lot larger, but it can be too large for some.[/*:m:2490yd3i]
- Price - the ATCS 840 costs around $50 USD more.[/*:m:2490yd3i]