Amazon.com: UTT ER840G 4 Port Internet WAN Router with 4 Gigabit WAN Ports – Load Balance & Failover – VPN – USB – Access Control – for Business : Electronics
Cisco RV042 4-port 10/100 VPN Router - Dual WAN
Cisco 881 Ethernet Security 4-Port 10/100 Mbps 1x FE WAN Router 881-K9 excl PS | eBay
Cisco ISR 1100 4 Ports Dual GE WAN Router w/ 802.11ac -E WiFi - YOT Store
Buy TL-R470T+ TP-Link 5-Port Multi-Wan Router for Small Office and Net Cafe Configurable Ports up to 4 Wan Ports Load Balance Advanced firewall Port Bandw
Balance Series - Built-In Survival Mechanism. No more connectivity failure.
Balance 20 Dual-WAN Router - Walmart.com
Cisco RV340 4-Port Gigabit Router with Dual WAN RV340-K9-NA B&H
Best Multi-WAN Routers
DSR-500AC Dual WAN 4-Port Gigabit Wireless AC VPN Router | D-Link
TL-R470Ta TP-Link Safestream Multi WAN Router | 4 10/100M WAN Ports w/ Load Balance Function | Portal Authencation Access Management
CP-WAN-A311 Digi ConnectPort WAN VPN 3G Wireless EV-DO Router
TP-LINK TL-R605 SafeStream Gigabit Multi-WAN VPN Router for sale online | eBay
Multi-WAN routers: A comprehensive guide to five of the best
Cisco ISR 1100 4-Por DSL Annex A M GE WAN Router (C1117-4P)