Cavabien GA81S2U 75mm GTX 970 GPU Cooling Fan Replacement for ZOTAC GeForce GTX 970 Graphics Card - 4-Pin PWM Fan (2 Pack) - Perfect for Gaming PC, Workstation & Cryptocurrency Mining Rig Cooling Solutions

The OEM fans started to make noise because the bearing on the fan was wearing out and not spinning as smoothly. Used these fans and they are way more quiet than the OEM fans and fit perfectly. Install was a breeze and very easy to do even without instructions on how to.