Firewall Appliance AP444 bajo pfSense® CE 4 puertos 4GB SSD 250GB
USG Dongle Firewall Device Is Like A Condom For Your USB Ports | HotHardware
Zyxel USG60 Unified Security Gateway 2 USB Ports 4 LAN/DMZ 2 WAN SPI firewall | eBay
Tripp Lite USB-C to RJ45 Serial Rollover Cable (M/M) - Cisco Compatible, 250 Kbps, 6 ft. (1.8 m) - USB / serial cable - - U209-006-RJ45XC - USB Cables - CDW.com
FIREWALL USG FLEX 500, 7 Gigabit user-definable ports, 1*SFP, 2* USB 1 YEAR BUNDLE - Black Shop Online
Compact fanless firewall appliance offers 6x 2.5GbE ports for $230 and up - CNX Software