**Product Specifications:**

**Brand:** TP-LINK

**Model:** TL-ER3220G

**Description:** Dual-core Multi-WAN Gigabit Enterprise VPN Router

**Hardware Features:**

- Dual-core CPU

- 256MB DDR3 high-speed memory

- 5 Gigabit Ethernet ports (1 WAN, 3 WAN/LAN, 1 LAN)

**VPN Support:**

- IPSec/PPTP/L2TP VPN

- Up to 50 IPSec tunnels, up to 32 PPTP/L2TP tunnels

**Internet Behavior Management:**

- Web authentication

- WeChat Wi-Fi connection

- PPPoE server

**Security Features:**

- Built-in AC function

- VLAN support (IEEE802.1Q)

**Web Authentication:**

- Local authentication

- RADIUS authentication

- Customizable authentication portal

**WeChat Wi-Fi Connection:**

- Easy guest Wi-Fi access via WeChat

- Portal page customization and advertising

**PPPoE Server:**

- Internal network access authentication

- Support for various authentication methods

**Bandwidth Control:**

- Flexible bandwidth utilization control

- Bandwidth control based on IP addresses

**Multi-WAN Load Balancing and Failover:**

- 1 fixed Gigabit WAN port, 1 fixed Gigabit LAN port, 3 configurable Gigabit WAN/LAN ports

- Load balancing and failover for multiple WAN connections

**Additional Features:**

- Support for PPPoE, dynamic IP, static IP

- Dual-port monitoring for internal and external networks

- DDNS and virtual server support

- UPnP and ALG service support

- Chinese language web management interface

- Log list function for network monitoring

- Troubleshooting tools like Ping and Tracert

This TP-LINK TL-ER3220G router offers a powerful performance with advanced features such as VPN support, internet behavior management, VLAN support, web authentication, and more, making it an ideal choice for secure and efficient enterprise networking.