Features:1. 100 percent Brand new and high quality.2. Its wireless transmission rate can reach up to 300Mbps.3. It is a half mini PCI-E card, fit for laptops with mini PCI-E mainboard.4. It has dual band, 2.4Ghz and 5Ghz.5. It provides an excellent solution for your daily online activities such as transferring files, browsing the Internet, and downloading music.Specifications:Material: PCB, MetalMode: atheros AR5B22300M Dual-Band(2.4g or 5g)andBluetooth 4.0Network Protocol: Support for 802.11a or b or g or nTransmission Rate: 300MpbsFrequency Band: 2.4GHz or 5GHzSystem: For WIN 7WIN 8WIN 10,etcInterface Type: mini PCI-ESize Specification:Half HeightThis Card Can be Used as a Killer Card.Half-Height Card Height: Approx. 2.6cm or 1.02inHalf-Height Card Width: Approx. 3cm or 1.2inCompatible: For ASUS, for M5G Z77, for Gigabyte, for ASRock Z77 Desktop Motherboard With MINI PCI-E Specification, for DELL, for Toshiba, for ASUS and other Brand New Notebook Models Can be Used.Fitment: Suitable for laptops, desktops, all-in-ones, small cases, advertising players and other devices with the same interfaceWeight: Approx. 5gPackage Include:1 x CardNote:1. Not compatible for Lenovo, for HP(whitelisting is required).2. A high card slot computer needs to add a full-height iron plate.3. For Acer R7-571G series uses the driver automatically recognized by the system, so there is no need to update the latest driver..