Cisco Aironet 3500 Series - AIR-CAP3502I-A-K9 Controller-based AP (2x3 (MIMO)Dual Band 2.4GHz and 5GHz Radios, Layer 3, 802.11n, PoE, Requires a Compatible WLAN Controller) Dual-Band 2.4GHz and 5GHz Radio Frequency, Layer 3 Mobility Data Transfer Rate: 300Mbps, Omni-Directional Antenna Gain: 4dBi 2x3 multiple-input multiple-output (MIMO) with two spatial streams 20- and 40-MHz channels, Legacy beamforming, 802.11 Dynamic Frequency Selection (DFS) 802.11a/g/n Ctrlr-based (sold seperately) AP w/CleanAir and Power Over Ethernet (PoE) Power Supplies (Sold Separately)