Information: This is a set of left and right side cpu and gpu cooling fans. These are new replacement fans. Each fan has 4 wires on a 4 pin connector. Compatible Models: for Rog Strix G512LWS G512LW G512LU G512LI G512LH Voltage: DC12V ( not compaible with the fan DC5V.Pls check your original fan before ordering the item). Only Fit for 12V Fan Package Includes: gpu cooling fan+cpu cooling fan, and thermal grease