There are two fans inside of the G3 3579 series, included Graphics chip (GPU) and CPU cooling Fan. Match your part number or give us a messsage if you're not sure which fan to select. Specifications:
Direct Current: DC 5V/0.5A
Color : Black
Connection: 4-pin 4-wires
Status : Brand New and Original

Reference Compatible with Dell Gaming Laptop G Series Models:
- G Series G3 3579
- G Series G3 3579
- G Series G3 3779
- G Series G5 5587

Compatible Reference Part Numbers:
GPU FAN D P/N : GWMFV, 0GWMFV, FKB7, DFS551205ML0T, DC28000KVF0
CPU FAN D P/N: TJHF2, 0TJHF2, FKB6, DFS481105F20T, DC28000KUF0

Package Includes:
1x CPU Cooling Fan
1x GPU Cooling Fan