.: DELTA/ DeltaModel: -9P81 AFB0912VHSize: 90x90x25MM (adjacent hole center distance 71.5MM)Bearing: single ballVoltage: 12VCurrent: 0.60ASpeed: 1000-4000RPM + 5%Interface: 4Pin (2510 main board 4 PIN)Speed: supportLength: 7.5CM box (optional extension line)Packing: no independent packing in bulkApplication: CPU fan replacement chassis mechanical electron cooling transmationAir: 30-50.53CFM6.88mm H2O- 8.88inch H2O pressureThe noise 20-48 dBAPhysical map: