The AIR-CT5508-50-K9 is part of Cisco's 5500 Series wireless controllers equipped with eight SFP uplink ports. It comes pre-licensed for up to 50 access points and supports a maximum of 500.
Specification
Cisco Aironet 5500 Series Wireless Controller
8 SFP uplink ports
802.11a/b/g/n/ac wireless standards support
Pre-licensed for 50 access points (expandable to 500)
Supports up to 7,000 clients
Dimensions: 44 x 53.9 x 4.45 cm
Weight: 15.87 kg
Operating temperature: 0 to 40°C
Power: 100-240 VAC, 50/60 Hz, 115W maximum