HP M220 Access Point AM - Wireless access point - 802.11 a/b/g/n - Dual Band. HP M220 802.11n Access Points are dual-band, single-radio devices supporting high-speed wireless networking at 5 GHz or 2.4 GHz. They are fully compatible with the high-speed IEEE 802.11n wireless standard and backward-compatible for legacy IEEE 802.11a/b/g support. They can run standalone or can be "clustered" for simplified administration of multiple HP M220s. With clustering, configuration changes automatically propagate across all HP M220 Access Points in your network. Clustering technology requires no wireless controller or additional hardware. Through this, you can keep your network easily accessible yet secure. HP M220 802.11n Access Points come with a lifetime warranty.