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Async RS-232 to Parallel Converter DB9 to 36 pin Centronics Interface Powered

Quick conversion for everyday print jobs.


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

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Product Features

  • Makes the DB9 serial port on your PC compatible with parallel devices.
  • Connect your PC to a printer—even with something plugged into its parallel port.
  • Converts serial to parallel or parallel to serial.
  • Automatic serial/parallel mode detection.


  • Built-in 6-foot (1.8-m) cable eliminates the need for extension cables. It includes a DB9 female socket for serial ports and a 36-pin male Centronics® connector plug on the other end.
  • Runs at speeds up to 38.4 kbps.
  • Also available with DB9 and DB25 connectors.

  • Tech Specs

    CE Approval Yes
    Connectors (1) DB9 F, DCE, (1) 36-pin Centronics M
    Controls External DIP switches: Speed, flow control, parity, word length
    Data Format Even, odd, or no parity; 7 or 8 data bits, 1 stop bit
    Flow Control Hardware or X-ON/X-OFF
    Indicators (1) LED
    Interface Serial: Asynchronous; Parallel: Centronics®
    Power From the RS-232 interface
    Size 2.7"H x 1.3"W x 0.8"D (6.9 x 3.3 x 2 cm)
    Speed 300 bps to 38.4 kbps, switch selectable
    Weight 0.2 lb. (0.1 kg)

    * 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: $16.38

    Extended 3 Year Warranty Available

    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $32.75


    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 Async 232 to Parallel Conv DB9 to 36 pin Centronics Interface Pwrd 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.