The Cisco 5508 Wireless Controller is a highly scalable and flexible platform that enables system wide services for mission-critical wireless in medium to large-sized enterprises and campus environmentsDesigned for 802.11n performance and maximum scalabilityOffers enhanced uptime with the ability to simultaneously manage 100 access points superior performance for reliable streaming video and toll quality voiceImproved fault recovery for a consistent mobility experience in the most demanding environmentsNumber of Ports: 3; Gigabit Ether Port: Yes; Interfaces/Ports: 1 x RJ-45 10/100/1000Base-TNumber of Expansion Slots: 9; Expansion Slots: (8 Total) SFP (mini-GBIC) (1 Total) Expansion SlotManagement: IEEE 802.1Q VLAN tagging; Quality of service (QoS); HTTP/HTTPS; SNMP v1/ v2c/ v3; Tel; Syslog; SNMP MIB II; Ether MIBInput Voltage: 110 V AC 220 V AC; Input Voltage Range: 100 V AC to 240 V ACDimensions: 1.75" Height x 17.30" Width x 21.20" DepthSupports up to 100 Cisco access points; IEEE 802.1D Spanning Tree Protocol; 1 x service port; 1 x service port for future use; 1 x utility port Supports all Cisco Unified Communications Wireless IP Phones for cost-effective real-time voice services Optional WPLUS license offers Control and Provisioning of Wireless Access Points (CAPWAP) encryption to ensure full-line-rate encrytpion between access points and controllers across remote WAN/LAN links Supports Unified Communications for improved collaboration through messaging presence and conferencingStandard Warranty: 90 Day Limited