Used - Like New: Zyxel ZyWALL (USG) UTM Firewall, Gigabit Ports, for Small Offices, 20 IPSec VPN, 5 SSL VPN, Limited, Hardware Only [USG40-NB] (USG40-NB) - Newegg.com
Software] How to download and install the latest software version of SecuExtender IPSec VPN Client for Windows OS – Zyxel Support Campus USA
ZyXEL NSG50 Nebula Cloud Security Gateway NSG50 B&H Photo Video
Reinstallation of the Zyxel IPSec VPN client – Zyxel Support Campus EMEA
Zyxel ZyWALL IPSec VPN Client | ZyxelGuard.com
Amazon.com: Zyxel High Performance 2GbE SPI/500Mbps VPN Firewall with 200 IPSec and 50 SSL VPN, 8 GbE Ports and High Availability (ZyWALL310) : Electronics