Dimensions: 120x120x25mm / 4.7 x 4.7 x 1 in per fan. Totally 245x245x55mm / 9.65 in x 9.65 in x 2.17 in. AC powered fan designed to cool various electronics and components. The power adapter increases maximum fan speed and enables the fan to be powered through an AC outlet.
Rated Voltage: DC 12V;
Rated Current: 2.0A mp;
Rated Speed: 2000 RPM;
Air flow: 4 x 66CFM;
Noise: 38dBASleeve bearing have a lifespan of 35 000 hours at 25 degrees and allows the fans to be laid flat or stand upright.