A Firewall is a front-line network security device that checks incoming and outgoing network data against a set of rules. The Cisco ASA5515??K9 Adaptive Security Appliance is a Cisco ASA 5500 Series Firewall designed to protect small and medium enterprises and branch offices. This device provides: 6x 1?Gb/s RJ??45 Ethernet Ports 8?GB Memory 1.2?Gb/s Stateful Inspection Throughput (multiprotocol) 250?Mb/s 3DES/AES VPN Throughput (Max.) 250,000 Concurrent Sessions (Max.) 1x Rear Expansion Slot 2x USB 2.0 1x 1?Gb/s Ethernet Management Port 1x RJ??45 Serial Console Please Note: This Cisco model number does not come with an installed Solid??State Drive. The Front Slot in the photo just has a filler in it. This Cisco ASA5515??K9 Adaptive Security Appliance has been removed from a working unit, tested for complete functionality by our expert in-house Cisco-Certified Technician, and is ready to ship today! Purchase with confidence, as the photos above represent the exact quality of your items, and come bundled with our 90 Day Warranty. *Please note, we have additional refurbished Cisco Network Security Hardware in stock; feel free to send a message and we will update the quantity to suit your specific needs.* Thank you for choosing AltaTech for all of your lightning-fast IT needs!