Delta Electronics PFB0912DHE-F00 92x92x38mm Cooling Fan, 175.03 CFM, 8000 RPM, 66.5 dBA, 3.72A (Max), 46.21 air pre., 4+3-pin power & TAC connector Size: 92 x 92 x 38mm, ball bearing high speed fan 8000 RPM, 66.5 dBA, Air Flow: 175.03 CFM, Air Pressure: 46.21 mmH2O Rated Voltage: +12VDC, Operating Voltage: +7 - 13.2VDC, 3.1A (3.72A Maximum), 37.2 W (44.64W Maximum) 4-pin molex power connector and 3-pin connector with speed sensor wire, and this version will connect to power supply directly and the fan will spin at full speed all the time If you like to control speed by a fan controller, please purchase the same fan on Amazon, just search for SKU IX-3U30-21NC, thanks!