User can change hardware MAC address thousands of times

PCI Express 2.0 and 802.11n compliance ensure a fast, reliable wireless-N network connection, while still being able to connect to older wireless b/g networks

Support for the latest wireless network security protocols and QoS, ensures a safe and efficient network experience

PCIe x1 interface ensures compatibility with all PCIe bus slots


The SD641 PCI Express Wireless N Card (PCIe x1) adds high speed wireless network connectivity to almost any PCI Express-enabled desktop/workstation PC. Using a 2T2R (2 Transmitter/2 Receiver) design over the 2.4GHz frequency, this PCIe wireless card provides up to 300Mbps of data bandwidth over an 802.11n network, while improving signal reception and range.

Backward compatible with 802.11b/g networks (11/54Mbps), this WiFi N adapter offers a versatile wireless networking solution with support for standard and advanced security options such as WEP, WPA and WPA2, along with wireless Quality of Service (QoS) support and quick and easy setup through WPS. With SD networking, your computer will turn into a highly-configurable workstation or server.


  • 2 Transmitter/2 Receiver (2x2:2) antenna configuration

  • Compliant with IEEE 802.11n standard, with support for up to 300Mbps of wireless data bandwidth

  • Backward compatible with IEEE 802.11b/g standards for up to 11/54Mbps connections respectively with Wireless-B and Wireless-G networks

  • Supported security features: WEP (64-128-bit), WPA, WPA2, WPS Support for WMM/WMM-PS Quality of Service (QoS)

  • Infrastructure and Ad-Hoc network modes support

  • Dual detachable 2dBi antennas
  • Specifications

    Interface PCI Express
    Standards IEEE 802.11b and IEEE 802.11g and IEEE 802.11n
    Antenna 2x2:2 (TxR:S)
    LED Indicator 1 - Link/Activity (green)
    Compatibility Windows XP(64-bit)/ Server 2003(32/64-bit)/ Server 2008 R2/ Vista(32/64-bit)/ 7(32/64-bit)/ 8(32/64-bit)
    Linux 2.6.32 or later
    Dimensions 3 in [75 mm] x 1.9 in [49 mm] x 0.7 in [18 mm]
    Temperature Operating: -10° ~ 70° C
    Storage: -20° ~ 70° C
    Humidity 5% ~ 95% max. (RH)
    Certification FCC, CE, RoHS
    Frequency 2.4 GHz ~ 2.484 GHz
    Media Access Protocol CSMA/CA
    Data Rate (auto fallback) 802.11b: up to 11Mbps
    802.11g: up to 54Mbps
    802.11n: up to 300Mbps
    Output Power 17dBm typically @ 802.11b
    13dBm typically @ 802.11g
    13dBm typically @ 802.11n
    Security TKIP/AES
    WEP Data Encryption
    WPA Data Encryption
    Channels USA: 11
    Europe: 13