Feature: 1. Possess wide compatibility, support for WIN XP/WIN7/WIN8/WIN10, support shared WIFI 2. Equipped with dual antennas, the chip is AR9223. the product support B / G / N band 3. This is a 802.11N 300M wireless network card, working at 2.4G frequency with high efficiency 4. Point‑to‑point measured speed is 90M or higher (two‑way to 180M), which make the product become the best choice for long‑distance high‑bandwidth transmission 5. Come with 1 screw and 2 antennas, easy for you to install and very convenient to use Specification: Item Type: PCI desktop adapter Model: TX-AR9WS Chip: AR9220 Speed: 300Mbps Interface: PCI Status: 2.4ghz Standard IEEE: 802.11 b/g/n Supported Operating System: For Windows XP 32/64 / Win7 32/64 / Win8 32/64 / WIN10 For WIN7 / WIN8 / WIN10 support sharing WIFI. Package List: 1 x PCI Desktop Adapter2 x Antenna1 x Screw Note: Please note that for the ROS system, we do not have technical support, you can search for information about this knowledge on for Google.