General Knoppix support for those who've read the FAQ at the Wiki
FORTINET FORTIGATE 40F Next GEN Firewall Network Security EXPIRED (FG-40F)- New
$199.99
Fortinet FortiGate 60F | 10 Gbps Firewall Network Security EXPIRED (FG-60F)- New
$279.99
Fortinet Fortiwifi 60D FG-60D Security Appliance Firewall / VPN w/ AC Adapter
$34.97
WatchGuard FireBox T35 Network Security Firewall Appliance with A/C Adapter
$33.33
Fortinet Fortigate 61E FG-61E Network Security/Firewall Appliance
$99.00
Palo Alto PA-220 Next-Gen Firewall 750-000128-00A w/ Power adapter
$64.99
Protectli VP2410 β 4 Port Intel Celeron J4125 Router/Firewall
$150.00
Cisco FPR-2100 Series FPR-2110 Firewall Security Appliance w/ 100GB SSD
$199.99
FORTINET FORTIGATE 40F Next GEN Firewall Security Unregistered (FG-40F)-Open Box
$175.99
1U BareMetal pfsense opnsense Router Firewall DNS Server 6x 10GB Ethernet Ports
$149.00