125/270* High Speed Mode
*When operating in High-Speed Mode, this Wi-Fi device achieves an actual throughput of up to 34.1 Mbps, which is equivalent to the throughput of a system following 802.11g protocol and operating at a signaling rate of 125 Mbps.
270 Mbps is the link speed when using Draft-N mode. It represents actual wireless data speeds, including overhead. Because the overhead is not available for user data transfer, usable wireless throughput will be substantially slower.