VantecThermoflow TF8025 80x80x25mm Double Ball Bearing Temperature Controlled Case Fan (Black)

We had a particular rack mount case that only had cutouts for 2 x 60mm fans in the back so we purchased two of these. Item is very well packaged and shows like it is good quality. As to the actual part specs, I am no expert. Out of the box you find the unit provides a molex connection with male / female connectors for power and chaining, and a single 3 pin yellow wired connection for fan RPM monitoring. Since we were using these on a good motherboard with enough 3 pin fan connectors, I kind of wish the units were powered by 3 pin as well. Maybe there is some technical reason why molex is the power source - the thermal sensor perhaps. Also included are 4 fan mounting screws. I found the fans to be rather quiet and not moving much air at all, but the power supply is not either, so I assume everything is running according to spec. Chassis temp in Intel Server Manager shows 44 C. Board temp is 35 C. Chassis fan, which I expect to be one of the installed fans, is showing 1988 RPM. This is an aging SE7221 server board with an HT P4 at 3GHz.

I bought two of these to use for cabinet cooling (receiver and PS3) but next time I have to replace a case fan I'm going with one of these. Here are the specs for the 80mm: [...]So basically they start picking up speed ~ 25C (77F).Pros:Quiet, smooth operation - can't even hear them at the lowest speedSeparate speed sensor cable to attach to motherboard (if applicable)Power connector has male/female molex so it can be chained together and not consume a power leadMoves a lot of air as the temperature risesCons:None yet... No cover plate? (but comes with screws)They do a pretty good job of keeping up with the PS3 which pumps out a lot of heat during games. The exhaust of the PS3 faces these fans and they in turn move the air out the back of the cabinet. I just used an old 12v power supply to drive them and it is plugged into the receiver so they come on when the receiver comes on.

I just installed 2 of these on a HTPC case to replace the stock fans. I was hoping to get improved air flow with the temperature control, however since installing these they operate at full speed all the time (LOUD!!!). There are no speed controls so I can only assume that these are malfunctioning. The computer runs at 25-30 deg C (about 5 deg coller than with the stock fans but not worth the extra noise) under normal operation and I don't think that should necessitate the fans running full speed.Going to stick the stock fans back in and live with the slightly warmer operation. It isn't worth the trouble to return so I will keep for another build.

Fan works good moves a lot of air (you can hear it moving it).Installed it on a HP p6523w for a case exhaust fan then when I moved the mother board to a cooler master 912 caseI installed it on my cooler master hyper TX3 CPU cooler for a push pull set up.Still running strong after seven months.The first one is still working well I decided to order another one for my Cooler Master Hyper TX3 I hooked up the RPM detection cable to the mother board and hooked the two fans Molex power cables up together (you don't need a adapter because the Molex cable has male and female on it).I put a four pin to three pin power adapter on it and plugged it into my NZXT Sentry Mesh Fan Controller with Five 30 Watts Channels.Now I can control both of the fans speed on my CPU cooler.

Fan does what it is supposed to do which is increase or decrease speed based upon the temperature of a sensor. It seems pretty quiet. I think it makes a lot of sense if your backplate has this size vent on it, to install it for some additional airflow, but you should be careful not to blow air towards your CPU (it doesn't seem to like this even if the air is cold.)Double check and make sure you have the sensor mounted on the outside if you want an exhaust fan or the thermal sensor on the inside if you want an intake fan.

Too many lolz. Plugged it in, heard a pop, saw a nice big puff of smoke. OOPS! Will maybe order another, hopefully it was just a lemon.

I was hoping for a fan that didn't run all the time, but came on when needed. I have it on a box that cools my routers (they crash less often now), the routers only get hot when I'm blasting lots of data through them for backup or streaming so they don't need the fan on 24/7. This is only 1 star... the other two stars are gone because the fan started to get very noisy after a month of use. Since I ordered two, I thought I'd try the other one on the 5 volt side of things... the fan was slower and quieter for a while, but I eventually had to unplug it too.

It's silent most of the time. It has a temp sensor on it by the hub. WHen the air going through it gets too hot....it steps up. It has a mid step which is fairly quiet, and at full tilt....it may be slightly noisier that the other fans in the 2u case. However, I put this at the exhaust of a PSU, so there is nothing in the way to muffle it.Ambient in case temps down about 4-5 degrees...board just 1 or 2..Now using these in both the 60, and 80mm flavors....I believe they hit the sweet spot dba/cfm. Highly recomend.