The TP-Link TL-WN881ND Wireless PCI Express Adapter is the solution to wireless connection needs. This tp link wifi card takes up a PCI-E x1 port rather than a USB port means no accidental disconnections and a more permanent setup. With this tp-link wireless adapter you can have speeds up to 300 Mbps, making it well-suited for online gaming and streaming. PCI Express Adapter. 300Mbps 2.4GHz, compatible with 802.11n/g/b, 2 detachable antennas. MIMO technology provides stronger signal penetration strength and wider wireless coverage, CCA avoids channel conflicts. WPA / WPA2 Encryptions. Bundled CD for easy operation. QSS software embedded. Supports ad-hoc and infrastructure mode.