SG-3110 All in One Dual WAN Security Gateway with 8 Gigabit Ethernet (GbE) Ports, Built-in PoE and WLAN Controller, Routing, Load Balancing, IPSec/L2TP VPN and DoS Defense Supported - FS.com
SG-5110 All in One Multi-WAN Security Gateway with 8 Gigabit Ethernet (GbE) Ports。1x SFP, 1x SFP+, Up to 10 Gigabit WAN Ports - FS.com
PoE 8 Port Switch: EWS2910P-FIT 61.6W Gigabit | EnGenius
D-Link DSR-150N 8-Port 10/100 Wireless VPN Router with Dynamic Web Content Filtering - Walmart.com
RS232/RS422/RS485 (NETWORK SERIAL SERVERS) — Connective Peripherals - US Store