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TwinMOS B241 — a WLAN card with 128MB flash memory

We´ve recently reported about GN-WLBZ201, Gigabyte´s combined USB flash drive and WLAN module. Today we can introduce a similar device from TwinMOS.

B241 (Netkey series) is originally named USB Flash WLAN Card. Sized 109.9x34.31x11.45mm, it weighs 15g. As a WLAN card it supports 802.11b (2,400-2,4835 MHz) standard. Other specs include:

  • Voltage: 3.3Vą5%, 5.0Vą5%
  • Consumed power: 350mA nominal, 650mA max.
  • Supported OS: Windows 98/98SE/ME/NT/2000/XP
  • Access protocol: CSMA/CA with ACK
  • Networking protocols: TCP/IP, IPX, NetBEUI
  • Modulation:
    • 11Mbps CCK
    • 5.5Mbps CCK
    • 2Mbps DQPSK
    • 1Mbps DBPSK
  • Encryption: 64/128-bit WEP
  • Covered range: 100-300m outdoors, 30-100mm indoors

As a flash drive the device features:

  • 128MB memory
  • 1000KB/s max. read throughput
  • 600KB/s max. write throughput
  • 100,000 rewrite cycles

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