2504 09 3987 Windows 7 64 Bit - Google — Anatel Wireless Drivers

Go to catalog.update.microsoft.com and search for 2504 09 3987 or the hardware ID. Download the .cab file, extract it, and manually install via Device Manager.

To find the correct driver, we must strip away the "Anatel" label and find the Hardware ID (HWID). Go to catalog

You will likely see a value that looks like this: PCI\VEN_14E4&DEV_4727&SUBSYS_145C103C... Go to catalog