Brand: Delta DELTA Publisher: Delta Electronics Public Co., Ltd Model: GFB0412VHF Size:40*50*32mm Bearing: High-precision double ball bearing Four balls Standard voltage: 12V Current: 0.54A Speed: 9500RPM Noise value: 51.5DBA Air volume: 19.67CFM Working life: 10.0000 hours Fan Interface: Motherboard 4-pin connector Additional features Support speed Features Maintenance-free double ball bearings, long life, with adequate cooling air volume and wind pressure. Applicable for heat dissipation, HP server heatsinks, heat remodeling, water-cooled heat-dissipation aids, switching power-supply cooling, and high-reliability server applications.