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This review is from: Scythe SY124020L 40mm Case Fan
Pros: Very quiet, moves a decent amount of air for the CFM.
Cons: A bit fatter than some other 40mm fans, this sucker is 20mm tall. I knew what I was getting here and it worked for me, but it might bother/not work for some people. Also, lm-sensors in linux (Debian) seems to have problems accurately reading my fan's RPM. It stays at 0RPM most of the time, occasionally reads around 1700RPM for a while, sometimes a little bit more before going back to 0 again. The fan is definitely spinning at a constant rate, this could be a problem with lm-sensors but I doubt it. I'm using the 3-pin adapter if it matters.
Other Thoughts: If you're looking for something to move a lot of air, this is not for you. If you're looking to make your rig quieter in exchange for +3-6c vs a stock fan, great choice.READ FULL REVIEW
This review is from: SilenX EFX-08-15 80mm Effizio Quiet Case Fan
Pros: Extremely quiet, even without the silicone dampeners. Have to stick my ear right next to it to hear it over the PSU fan (which I probably want to change out for something quieter). Old, obnoxiously loud fan was advertised at 2900 RPM, 35.20 CFM, 34.5 dBA. It is very difficult to compare the noise difference since this one is virtually silent but I'd say it pumps out a quarter of the noise.
Cons: Absolutely no way this fan has the rated CFM. Old, obnoxiously loud fan was advertised at 2900 RPM, 35.20 CFM, 34.5 dBA. This fan probably moves half the air, 60% at most. I don't need this fan to move a ton of air, but I was expecting a little more than this. Minus one egg for exaggerated airflow figures.
Other note: lm-sensors in linux (Debian) did not detect my fan. I didn't try slapping it into my windows PC since I had to squeeze this fan into a tiny SFF computer so I don't know if this is just lm-sensors being dumb or if there's something wrong with the onboard tachometer, or if there is none at all. I'm using the 3-pin connector directly off my mobo. Did not take off an egg for this since I'm not sure if there's a problem.
Other Thoughts: Overall, a great fan if you're looking for an 80mm fan that has some kick but is virtually silent. I would NOT recommend it for any situation where you need to move a fair amount of air. I've used several el cheapo 100mm fans that move a lot more, and they don't produce too much more noise. Smaller size was key for what I needed this fan for, and it fits the bill acceptably. If you're looking for a fan for a gaming rig/anything else where you're concerned about keeping things as cool as possible, go for larger fans when possible and if you need a 80mm fan, you'll want a noisier fan.
I used this fan and a Scythe SY124020L 40mm fan for the CPU to swap out stock fans in an older SFF computer I'm using as a NAS/Media server, noise level was cut down to just about nothing and while temperatures definitely went up, they're still perfectly acceptable at peak load after an hour or so (62c, 2.5Ghz Core2Duo). Now to fix that noisy PSU fan!
Pros: Good audio, I'm used to a a fully closed-ear USB headset and the quality for music was roughly equivalent. Once I decided to glance at the directions (which looked like they were actually put together by someone that spoke English), pairing process was super simple on my Android-powered Galaxy Tab II. Normally not a fan of the behind-the-head style but the headset is light enough to not feel like I've got an anchor stuck to the back of my head and it's comfortable, at least for my head.
First charge on the battery lasted me 7 hours of active playing and 2 hours sitting idle but still on and paired... And still doesn't indicate low battery.
Cons: Only real con is the lack of a standard charger. If you're using this primarily for a tablet like myself, the lack of a USB port for charging is a slight minus, but no egg taken off since I'll almost always have access to a USB port. If I got really picky, I'd complain about the inability to set a more secure pairing code than the default of 0000 but for what I'm using this for, the worst I need to worry about is someone listening to my music with me.
Also, being able to adjust the length of the headphones would be nice. Not necessary for me really but might be for larger people.
Half egg off for the above three as they're all very minor issues that won't really affect me, but might be an issue for others.
Other Thoughts: Have not and probably will not use the phone function, and thus cannot comment on the microphone quality. I can't imagine that it's fantastic since the microphone is built in to the exterior of the right earpiece, but since it's designed for use on a cellphone super-high quality probably isn't a concern to begin with.
Overall, well worth the $22 I spent on these when they were on sale and happy with what I got, especially from a company I've never heard of before.