40x56mm, 2 set of 3 wire lead, with RPM sensor12VCD 1.29A mp 15.5W att 14500rpm 25.8 cfm 56dBA1-Year Mfg Warranty Sunon PMD1204PPB1-A. (2). F. GN Sunon PMD1204PPB1-A. (2). F. GN 40x56mm-3pin TAC Sensor Hi-speed 14500RPM 25.8 cfm Case Fan