The AIR-AP3802E-S-K9C is a Cisco 3800 Series access point designed for large enterprises. It supports the 802.11ac Wave 2 standard with features like 4x4 MU-MIMO and speeds up to 5.2 Gbps. It has external antennas, two Ethernet ports including a multi-gigabit port, and is configurable and compatible with Cisco wireless controllers and software.