Wireless Network Card Board 3G WWAN GSM WCDMA HSPA GPS Wifi Module for Dell Latitude Item Type: Wireless Network Card Network Card Model: F5321 Applicable Computer Model: For Dell Latitude E5430/E5530/E6230/E6330/E6430/E6430 ATG/E6530/3360/Vostro 3460/XPS L421X Will work with for Three/Orange/O2/Vodafone/T-Mobile and more networks For Dell Part Number: DW5560-VNJRG (For Ericsson F5321) BIOS: For Dell version (only used in for Dell laptops) Device Type: Mini PCI-Express How e: 1. Open the back cover of the laptop with a small screwdriver, and find the wireless network card.(the wireless network card is a square, and there are two black and white wires connected. There are two small screws) 2. Unscrew the two fixed screws with a screwdriver, put them aside and keep. 3. Remove the old wireless network card and replace it with a new one, return to the installation according to the original disassembled route, and fix it. 4. Then boot up and install the driver automatically.(the driver can be matched by the supplier according to the customer's computer model)