This is a genuine Dell left fan unit replacement for Dell Inspiron and Latitude laptops. It is compatible with Dell Inspiron 13 5378 and Dell Inspiron 11 3164 models. The fan unit has a voltage of 3V and a black color. It has an aspect ratio of 4:3 and is manufactured in China. This unit is designed for Dell XPS 9520-7171SLV-PUS and XPS9520-9195SLV-PUS laptops.