Source Original GTX 970 4Pin Cooler fan for ZOTAC GTX 970 4 GB AMP Extreme Core Edition ZT-90101-10P Video Card with Heatsink Radiator on m.alibaba.com
Taking It To The Limit: Overclocking NVIDIA's GeForce GTX 970 & 980 – Techgage
MSI GeForce GTX 970 Gaming OC review (Page 3)
75MM T128010SM PLD08010S12H 3pin GTX 970 Cooler Fan for Gigabyte GV-N9 – gpu-fan