HP 3160-0378M - Tubeaxial fan - 105mm (4.126in) mounting hole spacing, 38.1mm (1.5in) thick, 115VAC, 50-60Hz, 120CFM - Mounts in the fan tray (Two used) Retail
HP 3160-0315 - Tubeaxial fan - 105mm (4.126in) mounting hole spacing, 38.1mm (1.5in) thick, 100-125VAC, 50-60Hz, 105CFM - Mounts on front fan panel (Four used) Retail
HP 3160-0362 - Tubeaxial fan (Nidec Corp. A30322-10) - 162mm (6.375in) mounting hole spacing, 50.8mm (2.0in) thick, 230VAC, 50-60Hz, 240CFM - Mounts in the plenums in both bays Retail
HP 3160-0485 - Tubeaxial fan (EBM Industries or Papst Mechatronic, 4112GXL) - 105mm (4.126in) mounting hole spacing, 38.1mm (1.5in) thick, 12VDC, 50CFM - (New style) - Mounts to the rear panel Retail
HP 3160-0228M - Tubeaxial fan - 120mm x 120mm x 38.1mm, 240VAC, 50-60Hz, 106CFM - Mounts in the fan tray (Two used) Retail