General Knoppix support for those who've read the FAQ at the Wiki
Fortinet FortiGate 60F | 10 Gbps Firewall Network Security EXPIRED (FG-60F)- New
$279.99
FORTINET FORTIGATE 40F Next GEN Firewall Network Security EXPIRED (FG-40F)- New
$159.99
FORTINET FORTIGATE 40F Next GEN Firewall Security Unregistered (FG-40F)-Open Box
$219.99
Fortinet Fortigate 61E FG-61E Network Security/Firewall Appliance
$99.00
Ubiquiti Unifi USG-Pro | 1U Rackmount Gigabit Firewall / Router
$99.95
Sophos XG 86 firewall with adapter and tested
$50.00
WatchGuard BS3AE5W Firebox T30-W Network Security Firewall w/ Power Adapter
$45.00
Palo Alto Networks PA-850 Enterprise Firewall Security Device 2X PSU
$259.99
Fortinet Fortiwifi 60D FG-60D Security Appliance Firewall / VPN w/ AC Adapter
$34.97
Fortinet Fortigate FG-61E Firewall Network Security Appliance ATP Bundle 1 years
$263.99