Features: 1.Easy to install with screws, with accurate cuts, can perfectly fit your computer. 2.bcm43142 bcm943142hm dw1704 half mini pci-e wifi bluetooth 4.0 card suitable for Dell xps 2710 17tr. 3.Easy to use, remove the old one and replace it with a new wireless network card, just follow the original disassembled route and return to the installation. 4.Convenient to use and with good performance, with small size, easy to carry and store. 5.With strict quality control and quality assurance, high safety factor, can be used with peace of mind. specification:Item Type: Wireless Network Card Model: bcm943142hm Interface Type: Mini pci-e Wireless Protocol: 802,11 b/g/n Mbps Rate: 2,4g 150m Support System: For windows 7/8/10 Applicable Model: For dell How to Use: 1. Open the back cover of the laptop with a small screwdriver and find the wireless network card; 2. Use a screwdriver to unscrew the fixed screw, put it aside and save it; 3. Remove the old wireless network card and replace it with a new wireless network card, return to the installation according to the original disassembled route, and fix it; 4. Then boot up and install the driver automatically. Product List: 1 x Wireless Network Card 2 x Screw PackageList: 1 x Wireless Network Card 2 x Screw