Zyxel 802.11n Hotspot Service Gateway with 200 Concurrent Device Support (UAG4100) IEEE 802.11 a/b/g/n dual-radio (2.4 GHz and 5 GHz) design Supports 200 concurrent logins by default and up to 300 via license upgrade Integrated account generator, Web-based authentication portal and billing system Supports external RADIUS servers Per account bandwidth management SP350E Service Gateway Printer enables one-click account and billing generation