WiFi USB dongle Realtek RTL8192CU 300Mbps 2T2R -VWN303U

WiFi USB adapter Realtek RTL8192CU 300Mbps 2T2R WiFi USB adapter Realtek RTL8192CU 300Mbps 2T2R

Visonicom VWN303U is a 2T2R 300M wireless USB adapter. It uses a highly integrated single-chip MIMO (Multiple In, Multiple Out) Wireless LAN (WLAN) USB 2.0 network interface controller RTL8192CU CPU, support for 2.4G frequency band, in full compliance IEEE802.11n protocol standards and backwardly compatible with 802.11g/b standards.

VWN303U integrates a MAC, 2T2R capable baseband and RF in a single chip, provides a complete solution for a high-performance wireless client. It baseband implements Multiple Input, Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) with two transmit and two receive paths (2T2R).

VWN303U 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.

VWN303U MAC supports 802.11e for multimedia applications, 802.11i for security, and 802.11n for enhanced MAC protocol efficiency.


2T2R max 300Mbps,
Supports 20MHz/40MHz Bandwidth transmission
Comply with IEEE 802.11n/g/b standards,
Supports IEEE802.11e; IEEE802.11i; IEEE802.11h;
Automatic transmission rate detection network and transform;
Supports 64/128 bit WEP data encryption; support WPA/WPA2/TKIP/AES other encryption methods,
Supports Multiple BSSID
Supports QoS Enhancement (WMM)
Supports WPS: PIN, PBC
Supports Cisco Compatible Extensions (CCX4)
Supports TPC, Spectrum Measurement
Supports Infrastructure and Access Point mode
MIMO power saving mechanism
Operating System Support: Windows XP 32/64, 2000, Vista32/64, Windows 7 32/64, Linux, Macintosh


Protocol standards IEEE 802.11n, IEEE 802.11g, IEEE 802.11b;
IEEE802.11e, IEEE802.11i, IEEE802.11h, 
Transmission rate 11b: 1/2/5.5/11Mbps
11g: 6/9/12/18/24/36/48/54Mbps
11n: up 300Mbps
Transmit power 17 dBm(Max)
Frequency range 2.412 ~ 2.4835 GHz
Work channel 114
Modulation type CCK/ OFDM/ BPSK/ QPSK/ 16-QAM/ 64-QAM
64/128 bit WEP encryption
Operating System Support Window 2000/XP/XP64/Vista/Win7/Mac
Interface USB 2.0
LED(Green) Link/Act
Power <= 2.5W
Antenna Built-in PIFA gain antenna
Environmental  Storage temperature: -20~70
Operating Humidity: 10% ~ 90% RH Non-condensing
Storage Humidity: 5% ~ 90% RH Non-condensing

Additional Info

  • Interface: USB2.0
  • WiFi Frequency: 2.4GHz 11n/g/b
  • WiFi Data Rate: 300Mbps
  • Transmission Power: Standard

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