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(After August 23rd 2018)



New Product

Wi-Fi/LAN to Serial/USB Adapter

Smart Phone/LAN FAX adapter

PCIe / PCIe (M2) Wi-Fi Module

Embedded Wi-Fi to Serial module
    temperature range -40 to +105C

Embedded Wi-Fi AP/router adapter

USB 3.0 to Gigabit LAN


PSTN, Dial-Up Modems

By Interfaces -

- PCIe Wi-Fi

- PCIe (M2) Wi-Fi

- Serial TTL, Internal

- RS232, Internal, 12/24/48V

- RS232, Standalone

- USB, Internal

- USB, Standalone

- PC/104

- ISA Bus


By Applications -

- Medical Modems

- Contact ID Modems

- Leased-Line Modems

- Bell 202 Compatible

- Speakerphone Modems


Wireless Modems

Wi-Fi Modems -




Bluetooth Modems

3G Cellular Modems

2.4GHz Transceiver


LAN Products

Serial to Ethernet Modules

USB to Ethernet Adapters

LAN/Wi-Fi/USB/Serial Converter

LAN to Serial/Modem Adapter


PC/104 Products

PC/104 Modem

PC/104 3G Cellular

PC/104 Wi-Fi

PC/104 LAN


Custom Specifications

Build-to-Suit, Wired or Wireless


OEM USB WiFi Modules WiFiHU2
- Soft AP Support





The Radicom Research WiFiHU2 series is a secure WiFi module that easily adds WiFi connectivity to virtually any processor-based device.  The module is IEEE802.11 b/g/n compliant with a USB2.0 interface.  With reliable transmissions, this USB Wireless LAN (WLAN) device has extended transmission and receiving ranges with good minimum sensitivity.  The WiFiHU2 series can achieve over-the-air data throughput of up to 300Mbps downstream and 300Mbps upstream PHY rates using 40MHz bandwidth. 

The WiFiHU2 family supports fast receiver Automatic Gain Control (AGC) with synchronous and asynchronous control loops among antennas, antenna diversity functions, and adaptive transmit power control functions to obtain better performance in the analog portions of the transceiver.

The WiFiHU2 series feature Soft AP support.  It can turn your Internet connected PC or Laptop into a WiFi Wireless Access Point.  So any nearby WiFi devices such as iPhone, iPod, PDA, can connect to the Internet through your sharing.

The WiFiHU2 protects the host with compliance of WPA/WEP/WEP2 security protocols.  The module is power efficient.


  • Soft-AP Support
  • Small size: 1 x 1.1 x 0.25(H)
  • -40C to +85C operating temperature*
  • Compliant with the IEEE802.11n specifications
  • Backward compatible with 802.11b/g devices
  • 300Mbps receive PHY rate and 300Mbps transmit PHY rate using 40MHz bandwidth
  • 150Mbps receive PHY rate and 150Mbps transmit PHY rate using 20MHz bandwidth
  • USB 2.0 hot swappable interface
  • Compatible with USB2.0 host controllers
  • Operates in 2.4GHz frequency bands
  • Fast receiver Automatic Gain Control (AGC)
  • Wi-Fi security using WEP, WPA and WPA2
  • 2 U.FL TX/RX antenna ports
  • LED output for visual monitoring of link and activity 
  • Windows 2K, XP, Vista, Win7 support
  • Linux 2.4/2.6 support
  • RoHS compliant
  • Agency approvals:

    • FCC15, IC, CE

    • Multi-country certification: Armenia, Australia / New Zealand, Azerbaijan(RF, Safety), Belarus(RF), China(SRRC), Moldova(RF + EMC + Safety), Kazakhstan(EMC Doc) (CU), Kyrgyzstan(Safety), South Africa(ICASA-RF), Tajikistan(Safety), Ukraine(RF + EMC), Uzbek(Safety), TELEC(Japan), FAC Doc(Russia), CIG023, Korea

 * Due to variations in USB hardware interfaces, the low temperature rating may degrade to -35C in some systems


Part Number



Wi-Fi Protocol 802.11b/g/n 802.11b/g/n
Transmit & Receive Level -84 (Rx) to +17 (Tx) dBm -84 (Rx) to +17 (Tx) dBm
Max. Data Rate - Receiving 300Mbps (40MHz)
150Mbps (20MHz)
300Mbps (40MHz)
150Mbps (20MHz)
Max. Data Rate - Transmitting 300Mbps (40MHz)
150Mbps (20MHz)
300Mbps (40MHz)
150Mbps (20MHz)
Size (inches) 1" x 1.1" x 0.25" 1" x 1.1" x 0.25"
Operating Temperature -40C to +85C -40C to +85C
Interface USB 2.0 USB 2.0
Bluetooth Coexistence Yes Yes
Antennas 2 on-board chip antennas w/ 2 U.FL connectors
USB Power 5V +/- 10% (typical) 5V +/- 10% (typical)
Current Consumption 150mA Typical 150mA Typical
Hosts Processor Requirements TCP/IP, WLAN TCP/IP, WLAN
Network Protocols Supported External External
Soft AP Support Yes Yes
No. of Clients Support 8 Simultaneously 8 Simultaneously
Wi-Fi Security WEP, WPA, WPA2 WEP, WPA, WPA2
Agency Approvals FCC / IC / CE FCC / IC / CE
Development kits WiMDK-2001-a WiMDK-2001-c


Ordering Information

Model Number


WiFi USB Module with dual on board chip antenna.  Not for use with external antenna.  Allows designer to determine USB Jack placement.
WiFiHU2-a installed in a carrier board with on board USB Jack.  Complete Wi-Fi module with dual chip antenna with USB Jack interface.
WiFi USB Module with two U.FL. Connectors for attaching antenna cables and antennas.
WiFiHU2-c installed in a carrier board. Complete Wi-Fi module with dual chip antenna with USB jack interface.
6" U.FL. to RP-SMA female connector antenna cable
Replacement antenna, 2.4GHz, 2dBi, RP-SMA, Omni-directional.
WiMDK-2001-a or -c
Including one WiFiHU2-a-1-NE, one USB cable (A-to-B)and Drivers.
Including one WiFiHU2-c-1-NE, one USB cable, 2 antenna cables (AC6i-RP-SMA), 2 antennas (ATN-2d-RP-SMA) and Drivers.

Mechanical Diagram & Pin Assignments - WiFiHU2-a, WiFiHU2-c


Mechanical Diagram & Pin Assignments - WiFiHU2-a-1-NE


  1. Pin spacing is 0.100 inch from center to center.

  2. Suggested mating female connector:

             Samtec P/N. #SSW-108-21-G-S (RoHS Thru-Hole)

             Samtec P/N. #SSW-108-22-G-S-VS (RoHS SMT)

  3. Square pins - 0.025" x 0.025"


Information furnished by Radicom Research is believed to be accurate and reliable.  However Radicom Research assumes no responsibility for its use, or any infringement of patents or other rights of third parties which may result from its use.  Radicom Research reserves the right to change circuitry at any time without notice.  This document is subject to change without notice.

The information contained herein is subject to change without notice. Logos, trademarks and copyrights are property of their respective owners.


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