What is Xpress Technology ?
Broadcom's Xpress Technology is one of the older performance-enhancing WiFi technologies, designed to improve wireless network efficiency and boost throughput. It is more efficient in mixed environments, and it can work with 802.11a/b/g networks.
When Xpress is turned on, aggregate throughput (the sum of the individual throughput speeds of each client on the network) can improve by up to 27% in 802.11g-only networks, and up to 75% in mixed networks comprised of 802.11g and 802.11b standard equipment.
The technology achieves higher throughput by by re-packaging data, reducing the number of overhead control packets, so that more useful data can be sent during a given amount of time.
It is not recommended to use Xpress in newer network environments (802.11n/ac), and with gaming, as any repackaging of data can introduce some delay.