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PCI bus serial board eight port RS-232 eight DB25

Provides 8 RS-232 serial ports when the card is installed in an open PCI slot in your computer.


12 In Stock
Same Day Shipping (before 5PM ET)
Extended Double Diamond™ Warranty Available (3 Additional Year)

*Required field

Product Features

  • Use an open PCI port to add 8 RS-232 ports to your computer.
  • Card has a 16550 UART providing speeds up to 115.2 kbps
  • Supports all PCI interrupts. You have more IRQs and fewer installation problems


  • Achieves 115.12-kbps sustained data rates.
  • Compatible with all Windows® operating systems (OSs) as well as Linux® and QNX. Includes drivers for Windows diagnostics and other enhanced features.
  • Includes an ISP port for IRQ sharing.

  • This product works with:
  • DB25 Serial Null-Modem Cable (BC00510)
  • Questions? Contact our FREE Tech Support.

    Tech Specs

    CE Approval Yes
    Connectors (1) DB78 F on card; (1) DB78 F and (8) DB25 M on included octopus cable
    Distance (Maximum) 50 ft. (15.2 m)
    Protocol Asynchronous
    Speed 115.2 kbps
    This product works with:

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.




    Double Diamond Warranty

    Extended 1 Year Warranty Available

    Protect your purchase with an additional 1 Year Double Diamond™ warranty!
    Cost: $44.81

    Extended 3 Year Warranty Available

    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $89.62


    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The PCI bus serial board eight port RS232 eight DB25 comes with a standard 1 Year Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.