Check the listing for details. Cisco ASA5512-X Firewall - Slightly used - Excellent condition. Condition: Used. Listed at 50.00 USD. The Cisco ASA5512-X Firewall is a high-quality security solution designed by Cisco, a trusted brand in networking technology. This model, ASA5512-K9, is a powerful firewall that provides robust protection for your network. With its advanced features and capabilities, this firewall ensures enterprise-grade security for your information and resources. Perfect for businesses looking to enhance their network security, this Cisco firewall is a reliable and dependable choice for safeguarding your digital assets.