Summary: The fan fits my Antec 900 two case perfectly. He only draw back is that it doesn't seem to move as much air as the stock LED big boy. My only wish is that manufacturers would have OEM parts available for consumer purchase.
Summary: The thing hangs face down in my 1100, the droop was too much since the assembly was put together missing a rubber o-ring that serves as a spacer, to prevent excessive hanging down. Once you pull it apart you'll understand.
Pros: Low RPM, quiet, good volume, well made motor, came in my Antec 1100. Will run OK at 500rpm, and silently but still moving a fair bit of air due to it's size. That's probably the point of a 200mm fan.
Cons: 3pin, if that's a con even, was very noisy and not correctly assembled initially, but quite fixable and is now quite satisfactory. If I could have gone down the street the night I was building my computer and bought another, I would have, but it was 2am and I wanted to see my new box come to life...
Summary: It's a pretty good fan, with built-in manual speed control. However, needs to have some kind of a grill included, because the blades can easily break. The wire needs to be much longer, given the size of today's cases.
Cons: blades are easy to break, i broke two blades by getting a wire caught around one while it was on low (i didnt have my case ziptied up yet). And the RPM could be higher, 800 seems a bit slow for a high setting.
Summary: PROS: Fairly well-known for good air flow & reasonable noise. Non-sleve ball bearing (better than sleeve bearings for non-vertical mounts). CONS: Mounting hole pattern not consistent with fairly common gaming case (might not fit yours!).