AC Infinity AC Infinity MULTIFAN S7-P, Quiet Dual 120mm AC-Powered Fan with Speed Control

I notice my AV receiver runs very hot. With the AC Infinity fans, the temperature has come down a lot with these fans at medium setting. Can't recommend these fans highly enough.

Fantastic, quiet, powerful AC and USB powered computer style fans. I needed something to help cool my blu-ray and old PS3 cabinet a bit, and this fits the bill! NOTES: -3 speed settings. I keep it on L (low) all the time. The M and H are great but I don't need that much power. I bought the version of this multifan that comes with the "overclocked" AC adaptor for the USB plug. Makes the fans run a bit faster than if they were plugged into a standard USB port. Go fig I didn't that, it's definitely powerful enough without that. No matter what speed you choose, it's always whisper quiet. Literally, you can barely hear it across the room. The switch controls both fans at the same time. No independent control. You can also use the switch to turn the fans off. -You can daisy-chain multiple USB fans together from this brand. Don't need to, but this set is wired with a female USB connection for another set. The fan switch control would control ALL fans at the same time. -There is roughly 44 inches cable length between the 2 fans. -There is roughly 6 ft of cable between the splitter for the fans, and the USB power connection. -The rubber feet can be removed if desired. You have to unscrew the fans first, and then you can take the screw out of the rubber. -When you remove the rubber feet, this removes the fan grills as well. You can remove the fans on both sides. If you don't like the grills, you can replace them with something else. Standard 120mm covers/grills work on these just fine. -You can re-orient the fan power cord to the intake or outtake sides. There's a little groove for that. -It's about 5 inches wide by 5 inches tall. The fan itself is 1 in thick. but the grills add about half an inch more, and the rubber feet another half inch. See images for more detail. These are 120mm fans through and through, with a thick grill. -If you need to rewire these for any reason, they are simple two wire fans with a black (ground) and red (power) cord. Currently, these bring my temperatures down from 81-83 degrees in the cabinet to about 73-75, depending on the day. Room temperature is usually around 73, so it does a great job keeping things almost at room temp, just on Low power! UPDATE: So for another application, I bought a seperate 120mm AC Infinity fan to add onto this. If you are planning on linking / daisy chaining more fans, the fan/controller with it's wire/speed control closets to the outlet (lowest in the chain) controls ALL later connections. What does this mean? If your first fan is set to Medium, all subsequent fans can only go to Medium. For me, I had to set the first fan to High, then my subsequent to Medium for my needs to get the airflow right. Small issue, and of course since it's USB connections you can always just get USB outlet adapters to get around the issue. No star deduction as I had a small feeling that happens.

Los ventiladores llegaron en tiempo y forma, bien empaquetados. Funcionan perfectamente y enfrían mucho mejor. Los uso sobre un receptor A/V y para nada se calienta como lo hacia antes. Aunque se pueden conectar al usb del receptor yo preferí conectarlos al contacto eléctrico usando el adaptador que viene con ellos, hay un modelo que viene con el adaptador eléctrico de alimentación. Recomendado al 100% de hecho pienso comprar otro similar para otro receptor que tengo.

I’ve bought many products from ac infinity over the last 3 months and am very pleased with their products so far. This particular S7-P model is very nice. I’m using it in a grow tent that I have in my bedroom daisy chained with 1 other standard S7 set (one fan in each corner of the 2x4 tent, I drilled small holes in the corner brace plates and zip tied them to the poles) on the night cycle to keep air circulating and they are very quiet, even on the highest setting. They run for 6-12 hours continuous a day and they’re still doing great after 1 month. The air flow will be a little low if the inlet is blocked, ie. placed against a wall, or if the device it’s sitting on doesn’t have good open airflow vents. But in the open it moves a reasonable amount of air (you can feel it from about 5 feet away on the highest setting) and on the lowest setting you can’t even hear it run, even in the quietest rooms. Overall build quality and packaging is great too. Can also be used as a bedside fan for anyone looking for an extremely quiet fan with a light breeze, and with the added flexibility of 2 fans. Pros: - quiet, even on the highest setting - low power consumption with dc motor - great build quality and packaging - able to daisy-chain up to 6 fans - rubber feet are soft and grippy - will definitely keep devices cool - 6.5 volt adapter can be used on other things as well, just make sure you don’t burn out 5v motors after prolonged use - for $35 cdn and free 1 day shipping I’m very pleased, would buy again and recommend - fast shipping and nice packaging Cons: - the 6.5v adapter makes the fans loud enough to hear on the highest setting but the room has to be very quiet to hear them. Overall still very quiet - would be nice if the cord between the 2 fans was the standard 3 feet but the 2.5 feet is still very good and accommodating without leaving too much extra cable laying around, but sometimes limiting based on the path/bend of the cable - not really any cons though, overall a great product and company so far 5 stars. Would recommend.

Replaced the fans which came with my network cabinet with these ones. They are much quieter.