Amazon.com: Zyxel ZyWALL 1.5 Gbps VPN Firewall Device, 2 WAN Router, load balancing, recommended for up to 10 users, 3G/4G LTE support [VPN2S] : Electronics
Amazon.com: Zyxel ZyWALL 1.9 Gbps UTM Firewall, up to 150 users - Includes 1-Year UTM Services Bundle [USG210] : Electronics
Amazon.com: Zyxel USG Flex 500 (USG110 v2), UTM Firewall Hardware Only, Recommended up to 150 Users [USGFLEX500] : Electronics