Dual Band 2.4G/5G Compact TP-Link Archer T2U Nano AC600 USB WiFi Adapter Supports Mac OS (10.7~10.14) and Windows (XP/7/8/8.1/10/11): From the producer Improved Relationships While 150Mbps on 2.4GHz is ideal for everyday tasks like web browsing with outdated devices, 433Mbps on 5GHz is best for streaming HD videos and lag-free online gaming. Quicker Results When 256QAM technology is supported, the 2.4GHz data rate rises from 150Mbps to 200Mbps.