The Intel® 82533RDE is a legacy Wi-Fi radio (RF) transceiver used alongside the Intel® 82533MDE MAC/controller in Intel PRO/Wireless 2915ABG modules, supporting IEEE 802.11a/b/g standards at up to 54 Mbps. Typically integrated into Mini PCI-compatible devices, it enables dual-band operation (2.4 GHz and 5 GHz). The chipset features DFS support and uses a U.FL antenna connector, offering reliable wireless performance.