Choose from over 13,000 locations across the UK Prime members get unlimited deliveries at no additional cost Dispatch to this address when you check out The fan speed is 1500 RPM with only 23.1 dBA, making it very quiet, with steady spinning and silent airflow that will not affect your work or sleep USB fans designed to cool various electronics and components such as TV boxes, receivers, DVRs, routers, modems, Xbox, PlayStation, microcomputers, surveillance recorders, Netgear, and other audio video electronics Rated Voltage: 5V 0.2A Speed: 1500 RPM Airflow: 56.7 CFM Noise: 23.1 dBA Bearing type: Hydraulic Life: 40,000 hours Dimensions: 120 mm (L) x 120 mm (W) x 25 mm (H) / 4.7 x 4.7 x 1 in. per fan 1 piece fan includes fan protective net, 4 foot columns, and 4 mounting screws and nuts