Tested working Cisco ASA 5505 Adaptive Security Appliance Firewall. Multiple units for sale, there are various IOS software versions, licenses, and physical conditions. A power supply is required for this item and is NOT included. Please see notes under “IOS Version” list, but feel free to contact me regarding and specific questions or if you would like more pictures of a specific unit. All units are tested working. Item may have scratches/scuffs/blemishes, and other signs of normal wear-and-tear. All ports on the device have been tested. Devices have been reset to factory default. Some units are missing the security slot cover on the back, or the rubber foot pads on the bottom (see notes in “IOS Version” options). No power supply, cables, or other accessories are included.