150Mbps Wireless N Router
EnGenius ESR1221N 150Mbps Wireless N Router applies the latest 802.11 technology to provide superior range and high speed wireless connectivity. ESR1221N is backward compatible with 11g devices.

ESR1221N is an affordable solution to upgrade your wireless network from 802.11g devices and enjoy the faster wireless connection to surf Internet, transfer files, listen to music, and etc.

ESR1221N supports the latest industry standard wireless data encryption WEP/WPA/WPA2 to protect your data and network activity in a public environment. Powerful Stateful Packet Inspection (SPI) Firewall and Network Address Translation (NAT) protects against strengthen your privacy and security.

• Up to 150Mbps
• Intelligent QoS to Optimize the Media Streaming
• Push Button Wireless Security Setup
• External Antenna to Get Greater Coverage
• WEP / WPA / WPA2


Key Features

Wireless 802.11n Technology

The most advanced wireless networking technology for better range and faster speed and backward compatible with 802.11g wireless devices.

Multiple SSID

Create a separate network for sharing your Internet connection with others while keeping your data private

Push Button Security Setup

Configurable through push-button setup, your network PC’s web browser, or the included setup wizard

Security & Management


Powerful SPI Firewalll


WMM based on QoS


Easy Setup

The Wizard CD guides users to setup ESR1221N smoothly


RF Specification

Frequency Band 2.400–2.484 GHz

Modulation Technology OFDM: BPSK, QPSK, 16-QAM, 64-QAM


Operation Channels 11 for North America, 14 for Japan, 13 for Europe


Wireless Mode 11b/11g/11n

Channel Selection (Setting varies by Country)

Channel Bandwidth (Auto, 20Mhz, 40Mhz)

Transmission Rate 11g: Best. 54, 48, 36, 24, 18, 12, 11, 9, 6, 5.5, 2, 1 in Mbps


Receive Sensitivity

IEEE 802.11n  up to -85dBm

IEEE 802.11g  up to -88dBm

IEEE 802.11b  up to -90dBm

Available Transmit Power

IEEE 802.11n  up to18dBm

IEEE 802.11g  up to 18dBm

IEEE 802.11b  up to 19dBm

Software Features
Topology Infrastructure

Operation Mode AP/Router


DHCP Server

Static Routing Table


WAN PPTP • PPPoE • Static IP • DHCP Client • Clone MAC address



Static Routing

Dynamic Route

Virtual server mapping

IP address mapping

Port Forwarding

Port Triggering

Special application

DNS Relay


Time Zone(NTP client)


Block ICMP Ping

DoS(Block ICMP Ping, Port scan, Sync Flood)

MAC/IP Filtering

ICMP Blocking

SPI (Stateful Packet Inspection)

DMZ (Demilitarized Zone) Host

Policy Based Parental Controls

Port Range / Service Filtering

Internet Domain Restriction

VPN VPN pass-through (PPTP, L2TP, IPSEC)


Power saving(Green technology)

64/128 bit WEP Encryption

WPA Personal (WPA-PSK using TKIP or AES)

WPA Enterprise (WPA-EAP using TKIP)

802.1x Authenticator

Hide SSID in beacons

Wi-Fi Protection Setup (WPS)


ACL control

Best Channel selection

Speed/Bandwidth monitor



Application base

- Priority Queue

- Bandwidth Allocation


Configuration Web-based configuration (HTTP)

Firmware Upgrade Via webpage upgrade

Auto recovery if firmware upgrade fails

Administrator Setting Administrator password change • Idle time out

Reset Setting Reboot • Reset to Factory Default

System monitoring Speed and bandwidth monitoring

Scheduling Enable Firewall • Enable power saving

Easy Access User can type model name and access the main page

Install wizard Guides user to set-up router smoothly

Environment & Physical

Temperature Range
Operating: 0°C to 45°C (32°F to 113°F)

Storage: -10°C to 70°C (14°F to 158°F)
Humidity (non-condensing) 15% – 95% typical