The SG500 maximizes network availability by incorporating fully redundant stacking and dual firmware images. Because network uptime loses its worth if your data isn't secure, the integrated security and authorization features of this managed switch prevent unauthorized access to your network's critical information. Included Quality of Service (QoS) functionality bolsters your video and voice communications.

Additional features of the Cisco SG500 Ethernet Switch include:

• 48 10/100/1000 Ethernet ports, four miniGBIC slots (shared with four Ethernet ports) for network expansion
• Secure, encrypted management via SSH and SSL, as well as 802.1x and MAC authentication and filtering
• Advanced security - Protect against "man in the middle" (eavesdropping) attacks - ARP Inspection, IP Source Guard, DHCP Snooping, STP Root Guard
• Resilient stacking for web-based management of up to four supported switches at once

• Cisco 500 Series switches offer a limited lifetime hardware warranty with NBD advance replacement
  (where available; otherwise same day ship) and a limited lifetime warranty for fans and power supplies.

  In addition, Cisco offers software application updates for bug fixes for the warranty term, and telephone technical support at no charge for the first 12 months following the date of purchase