General Knoppix support for those who've read the FAQ at the Wiki
Fortinet Fortigate FG-61E Firewall Network Security Appliance ATP Bundle 1 years
$263.99
Watchguard Firebox M370 WL6AE8 Network Security Appliance USED
$118.00
Cisco ASA 5505 v09 Series Adaptive Security Appliance Firewall
$19.99
Palo Alto PA-220 Next Generation Firewall Appliance w/ Power Adapter and Cord
$62.99
Palo Alto PA-220 Next-Gen Firewall
$49.95
Cisco Meraki MX64-HW Cloud Managed Firewall **UNCLAIMED
$25.00
Palo Alto PA-220 Next-Gen Firewall 750-000128-00A w/ Power adapter
$62.00
Cisco ASA5506-K9 ASA 5506-X Network Security Firewall
$40.00
Juniper Networks SRX320-POE 6-Port Service Gateway Security Appliance Tested
$149.99
Palo Alto Networks PA-820 Enterprise Network Firewall Used
$110.00