Quad-Port Realtek RTL8100C 10/100 Ethernet PCI Card

P811B Front

The P811B-4R is a perfect four-port Ethernet card for a router or a server, to implement an embedded VPN, firewall or router requiring only one PCI slot. It has one (1) built-in miniPCI slots, sharing with the 4th LAN ports. Wireless capability can be easily expanded with 802.11b/g/a miniPCI adapters.


P811B is guarranteed for one (1) year.


  • The wireless adapter and antenna in the picture is for illustration on the usage of the miniPCI slot only. There is neither miniPCI wireless adapter nor antenna included in the package.
Price: $119.99
Printer-friendly versionSend by emailPDF version
  • PCI bridge chipset: PLX PCI 6152 33BC 33MHz/32bit PCI bridge
  • Compliant to PCI-2.2 standard
  • Four (4) RJ-45 LAN ports on board based Realtek RLT8100C 10T/100T . (Recognized as four independent Ethernet ports)
    • Supports 10Mb/s and 100Mb/s Fast Ethernet
    • IEEE 802.3 10BaseT, IEEE 802.3u 100BaseTX Fast Ethernet
    • Supports Full Duplex Flow Control (IEEE 802.3x)
    • Supports Wake On LAN (PME) function
    • Supports PXE and RPL boot function depending on the main board's BIOS support
  • One (1) miniPCI sockets support Type IIIB only and share with 4th LAN Port. Note: If the miniPCI is used, the corresponding Ethernet port must be disabled.


  • A computer running Linux with the following recommendations:
    1. 400Mhz x86 compatible CPU
    2. 128M RAM
  • PCI slots.
    1. 1 x PCI slot for the main quad-port LAN board (5V)
  • Configurations (jumper setting):
    1. Four (4) Ethernet ports.
      • J1 OFF, J2 ON, J3 OFF, J4 ON
    2. Three (3) Ethernet ports, one (1) MiniPCI
      • J1 ON, J2 OFF, J3 OFF, J4 ON (MiniPCI1 enabled, LAN4 disabled)