Cooler Master SickleFlow 120 - Sleeve Bearing 120mm 3-Pin LED Silent Fan for Computer Cases, CPU Coolers, and Radiators - Red

They're just fans, so not that much to review, but Ill find a way to make it a decent length :) First time buying case fans, wasnt disappointed. Looked nice out of the box, with two four pins on the cable end, on a female, one a male ( only need to plug in one). Pluged it in, then tried screwing onto my side panel. Not sure if its supposed to be like this, as this is my first case fan buy, but the screws were VERY difficult getting in. I think it was my case holes, but once they were past the case holes, it took quite a bit of strength to turn and screw in all the way. More annoying thank difficult, and certainly not impossible. Because of all the effort, it only took two screws to securely get both fans onto the panel. Two screws at opposite corners for both fans.Turned on my power, and they both lit up very nicely. The lights look great. Very noticeable. They whirred up, and one of them made a clicking noise, like it was hitting something. Moved the wire away, and made sure it was tight on the panel (it was, trust me, no wiggling). Stuck my finger in while it was running. That stopped the noise (albeit, the noise occasionally occurs when the fan powers on, but thats it).They looked nice, power up nicely, and they cooled very well. I can feel these fans a foot away, and they actually cooled me down, as I was right next to them.They are loud, however. My case isn't in a desk or anything, just on the floor, so once I get a desk to put it in, the sound will lessen a bit, but for now, the noise is quite noticeable. COuld hear it several feet outside and down the hall. I use headphones, so it doesn't really matter.So - nice lighting, very nice cooling, good pricing, but annoying to put in place, had a slight clicky noise when powering on, and in general is loud.If you can put up with the loud noise (and most likely, you wont get the same clicky noise I got, as every fan is different)and don't sleep with it on (its that bright) you will be golden, or in this case, blue.Great buy, and would buy again, probably will to replace my other fans.

I picked up 4 of these (red) plus 2 cooler master jet flow's (also red) for my corsair c70. The jet flows are my front intakes and the 4 sickle flows are my top and rear exhaust and side intake. I run all 6 of these fans with an NZXT Sentry II fan controller and I have to say, the combination works very well. Below I will praddle on about why I give these fans a 5 star rating, broken up so you don't have to wade through a giant wall of text.Sound:Increasing the speed of these fans to their maximum settings (even all 4 at once) still only produced a low hum and at low speed idle, I can't really tell they are on at all. All four of these combined don't produce the noise that 1 of the jet flows I installed will make at half speed. Granted, the jet flow is a higher CFM fan but they sound like your case is about to lift off and take flight, probably why they chose that name.Cooling Capability:These fans move plenty of air and so far keep my FX8350 paired with a cooler master hyper 212 evo at 10°C when idle and after an hour of gaming the max it reached was 35°C. My gigabyte GTX 770 idles at 29°C and maxed at 57°C. I didn't even have to crank up the rpm's while gaming to keep the temp that low so these fans certainly did impress.Looks:Visually, these fans look great on my black C70 case and produce just the right amount of light so that it will catch someone's eye, but not annoy or distract you when you are gaming or whatever with the lights off. Also, the lights get brighter the higher the fan speed is increased, which I thought was pretty cool. The NZXT Sentry II I mentioned above has leds to label each fan switch that you can change the color of with the push of a button. With it set to red, the colors match these fans perfectly. I took some pics after I got them all installed and sent them to a geeky co-worker of mine and he was jealous because the case looks wicked but not over the top like some cases you see with lights that will blind you and your neighbors.Price:69.69 CFM, 2,000 RPM 120mm LED fans under $10 and I've seen the blue ones as low as $6.99. I looked at some Corsair led 120mm fans and they were $15-$20+ for just 1 and they were only around 50 CFM. Good luck beating this deal.Overall, I am very pleased with my purchase and would recommend these in a heartbeat to anyone. And as always, Amazon got my shipment to me on the day they said it would arrive without so much as a dent in the packaging. All 6 of the fans and the controller arrived and worked perfectly. Kudos Amazon, keep up the good work.