This adapter was designed for Noctua fans in according to the measurements from the actual fans & their model(s). Main difference between this model & other's are:

the expansion slots, which include all the air inlet & outlet from A9 92x92 & P14 140x140 fan(s)reduced noise from swirling air from inlet / outletcurved edges for smoother transition, better stiffness & less air swirlingdesigned by a mechanical engineer, in accordance with all best engineering practices.Suggested higher temperature resitant 3D printing material advised: ABS, ASA, HIPS, PP, PC or Nylon.

Model is tested & suited on side of 92x92 Noctua A9 fan with: M3x25 screws, nut DIN 967 M4 with washer DIN 125 (tightening parts not included)! Also M4 can be fitted also on N9 & this model, but use smaller DIN 433 washer. Model is tested & suited on side of 140x140 Noctua P14 fan with: M4x40 screws, nut DIN 967 M4 with washer DIN 433 (tightening parts & fans not included)! Using other tightening sizes at your own risk to fit with part.

Item dimensions: 140x140x45mm.

For any aditional questions &/or suggetion, contact me freely. Other sizes or inclination(s) can be made on request!