Characteristics: 1. 2. The wireless transmission speed can reach up to 300Mbps. 3. It is a half mini PCI-E card, fit for laptops with mini PCI-E motherboard. 4. It has dual band, 2.4Ghz and 5Ghz. 5. It provides an excellent solution for your daily online activities such as file transfer, internet browsing, and music download. Technical data: Material: PCB Mode: atheros AR5B22 300M dual-band (2.4g / 5g) + Bluetooth 4.0 Network protocol: Support 802.11a / b / g / n Transmission speed: 300 Mb / s Frequency band: 2.4 GHz / 5 GHz System: for win 7, win 8, win 10 etc. Interface type: mini PCI-E Size specification: half height This card can be used as a killer card. Half card height: Approx. 2.6 cm / 1.02 inch Half-height card width: Approx. 3 cm / 1.2 inch Compatible: for ASUS, for M5G Z77, for Gigabyte, for ASRock Z77 motherboard with MINI PCI-E specification, for DELL, for Toshiba, for ASUS and other brand new notebook models. Fitment: Suitable for laptops, desktops, all-in-one, small enclosures, advertising players and other devices with the same interface Weight: Approx. 5g Package includes: 1 x card Note: 1. Not compatible with Lenovo, for HP (white list is required). 2. A computer with a high card slot needs to add a full height iron plate. 3. For Acer R7-571G series, it uses a driver that is automatically recognized by the system, so you don't need to update the latest driver.