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TP-Link TL-ER5120 4-port Cable Router

CCL Code: NET0451
Manufacturer Code: TL-ER5120
Manufacturer: TP-Link
TP-Link TL-ER5120 4-port Cable Router

Key Features:

  • Number of LAN Ports: 4
  • Port Speed: 10/100/1000Mbps
  • USB Port(s): No
  • WPS Support: No

Delivery Options

Friday 10th July via Priority DPD

Free Delivery by Thursday 16th July

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The TL-ER5120 Gigabit Load Balance Broadband Router from TP-Link possesses excellent data processing capabilities and multiple powerful functions including Load Balance, Access Control, IM/P2P Blocking, DoS Defense, Bandwidth Control, Session Limit, PPPoE Server and so on, which consumedly meet the needs of small and medium enterprises, hotels and communities with large volumes of users demanding an efficient and easy-to-manage network with high security. For defense against external threats, TL-ER5120 features an automatic protection to detect and block Denial of service (DoS) attacks such as TCP/UDP/ICMP Flooding, TCP Scanning, Ping of Death and other related threats. Moreover, this router offers a hardware DMZ port, which allows you to setup public servers without exposing your internal network, to avoid attacks from external threats. For better management of the internal network, TL-ER5120 allows administrators to set rules to block specific web sites and IM/P2P applications with just one-click, and restrict staff to use specific services such as FTP, HTTP and SMTP.

Main Features

  • 1 fixed gigabit WAN port, 1 fixed gigabit LAN/DMZ port and 3 free changeable gigabit WAN/LAN ports
  • Abundant security features including ARP Inspection, DoS Defence, URL/Keyword Domain Filter and Access Control
  • Deploys One-Click restriction of IM/P2P applications to manage staff online behavior
  • Supports PPPoE Server for the better management of internal network
  • Load Balancing, automatically selects the best line according to the load
  • Professional 4kV lightning protection keeps your investments as safe as possible


Throughput 350 Mbps
MTBF 120,000 Hrs


Security ARP Inspection: Sending GARP Packets; ARP Scanning by WAN/LAN; IP-MAC Binding • Application Control: IM, P2P, Web IM, Web SNS, Web Media, Protocol, Proxy Blocking • Attack Defense: TCP/UDP/ICMP Flood Defense; Block TCP Scan (Stealth FIN/Xmas/Null); Block Ping from WAN • DMZ Port: 1 Hardware DMZ Port
Firewall Filtering MAC Filtering; URL/Keywords Filtering; Web Content Filtering (Java, ActiveX, Cookies)


Protocols Supported TCP/IP, DHCP, ICMP, NAT, PPPoE, SNTP, HTTP, DNS, IPsec, PPTP, L2TP
Ethernet Standards IEEE 802.3, 802.3u, 802.3z, 802.3ab


Console Port 1 x RJ-45
Number of WAN Ports 1 port(s)
WAN Port Connector RJ-45
WAN Port Speed 10/100/1000 Mbps
Number of LAN Ports 4 port(s)
LAN Port Connector RJ-45
LAN Port Speed 10/100/1000 Mbps


Memory Size 128 MB
Memory Type DDR2
Flash Memory 8 MB


Safety CE, FCC, RoHS


Management Maintenance: Web/CLI/Telnet Management Interface • Remote Management • Export & Import Configuration • NTP Synchronize • Syslog Support; Service: PPPoE Server • E-Bulletin • Dynamic DNS (Dyndns, No-IP, Peanuthull, Comexe)

System Requirements

System Requirements Microsoft Windows 98SE, NT, 2000, XP, Vista or Windows 7, MAC OS, NetWare, UNIX or Linux


Power Adaptor Type Internal
AC Input Voltage 100 to 240 VAC
Electrical Frequency 50 to 60 Hz


Operating Humidity 10 to 90 %
Operating Temperature 0 to 40 °C


Form Factor 1U Rackmount
LED Status Indicators PWR, SYS, Link/Act, Speed, WAN, DMZ
In The Box TL-ER5120 • Resource CD • Power Cord • Rack-mount Kit • Installation Guide
Width 44.0 cm
Depth 22.0 cm
Height 4.4 cm

Key Features

Wireless Network No
WPS Support No
USB Peripheral Connection No
Router Type Cable

Wireless Communications

WiFi Type None


Warranty 1 Year

Item Details

Manufacturer TP-Link
Manufacturer Code TL-ER5120
UPC 845973041113
Condition New

Warranty Information

Warranty 1 Year

Manufacturer Information

Manufacturer TP-Link
Manufacturer Code TL-ER5120

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PDF Datasheets and Manuals

Document File type File size
TP-Link TL-ER5120 Gigabit Load Balance Broadband Router pdf 0.78MB
Manual pdf 3.80MB