The PEX300WN2X3 PCI Express Wireless 802.11n 300Mbps network adapter adds high speed wireless network connectivity to almost any PCI Express-enabled desktop/workstation PC. Using a 2T3R (2 Transmitter/3 Receiver) Multiple Input Multiple Output (MIMO) design over the 2.4GHz frequency, the PCIe wireless card is capable of reaching data transfer speeds of up to 300Mbps over an 802.11n network, while improving signal reception and range. Backward compatible with 802.11b/g networks (11/54Mbps), the adapter card is a versatile wireless networking solution; with support for standard and advanced security options such as WEP, WPA, WPA2 and 802.1x along with wireless Quality of Service (QoS) support, and quick and easy setup through WPS, this PCI Express 2.0 card is backed by StarTech.com''s lifetime warranty and free lifetime technical support, making for an excellent wireless upgrade or first-time setup option.