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Keyboard/Mouse Extender Remote Unit  

Works with the Keyboard/Mouse Extender Local Unit to send your keyboard and mouse signals up to 350 feet—without power!


LIFETIME DoubleDiamond™ Warranty (Standard)

Product Highlights

  • Here's a simple, non-powered way to extend your keyboard and mouse signals. You'll need one remote unit (AC644A) and one local unit (AC643A). For details on the local unit (AC643A), see Related Items.
  • Connect a PS/2® keyboard and mouse to a PC—up to 350 feet (106.7 m) away.
  • No power needed!
  • Guaranteed for life!

  • Further Details

  • Ideal for classrooms, digital signage, presentations, information systems, and more.
  • Use economical unshielded CAT5 cable.
  • Small and compact! No bulky power supplies needed.
  • Use in point-to-point configurations.
  • Easy to install.

  • Here's the easiest way you can extend your keyboard and mouse signals—without worrying about power hookups! With the Keyboard/Mouse Extender, you can set up your keyboard and mouse 350 feet (106.7 m) from your CPU and monitor or display.

    Make great presentations where the information is the focus, not you. When used in team presentations, you can control the keyboard and mouse at the back of a darkened room, while your partner highlights the display at the front of the room. If you're a teacher or training facilitator, you'll find these extenders work perfectly in the classroom. You can control the keyboard and mouse unobtrusively while the students focus solely on the display.

    You can also use the extenders to control digital signs in boardrooms or even auditoriums. They're ideal for any application where you need to set up your keyboard and mouse some distance from your CPU.

    You'll find these extenders extremely easy to use. Simply connect the local and remote units to your equipment. Then plug in your inexpensive unshielded CAT5 or higher cable. There are no power supplies to worry about!

    Use the extenders in pairs: The local unit connects to a PS/2® keyboard and mouse. The remote units connects to the PC. A USB keyboard and mouse may be connected using a USB-to-PS/2 adapter.

    NOTE: The Keyboard/Mouse Extender must be used in pairs, which can be two AC644As, one AC644A and one AC643A, or two AC643As.

    Bandwidth DC to 1 MHz
    Cable Unshielded CAT5 or better
    Distance 350 ft. (106.7 m)
    Enclosure ABS fire-retardant plastic
    Pinning Configuration Reverse polarity sensitive; Use T568A or T568B straight-pinned wiring;
    Mouse: Ring: Pins 1 and 3; Tip: Pins 2 and 6;
    Keyboard: Ring: Pins 4 and 7; Tip: Pins 5 and 8
    Signals Mouse data, mouse clock, keyboard data, keyboard clock, Vcc, ground
    Transmission Transparent
    Temperature Operating: 32 to 131° F (0 to 55° C)
    CE Approval Yes
    Connectors Keyboard/mouse: (2) 6-pin mini DIN F;
    Cable: (1) RJ-45
    Size 1"H x 2.4"W x 2.3"D (2.54 x 6.1 x 5.8 cm)
    Weight 0.1 lb. (<0.1 kg)

    This product works with:
  • Keyboard/Mouse Extender Local Unit (AC643A)
  • VGA Source Balun (AC640A)
  • VGA Display Baluns (AC641A–AC641A)
  • VGA Extender (AC555A)
  • CAT5 Solid-Conductor Cables (EYN737MS)
  • Questions? Contact our FREE Tech Support.

    NOTE: Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 1-800-316-7107.


    • Keyboard Mouse Extender
      Installation/User (Feb-06)
    • Keyboard Mouse Extender
      Installation/User (Feb-06)

    Product Data Sheets

    Application Diagrams

    Accessory: AC555A-R2

    VGA Extender Kit, 2-Port Local, 2-Port Remote

    VGA Extender Kit, 2-Port Local, 2-Port Remote

    Accessory: AC641A

    VGA Display Balun

    VGA Display Balun, Female

    Accessory: AC643A

    Keyboard/Mouse Extender Local Unit

    Keyboard/Mouse Extender Local Unit

    Accessory: EYN556MS-0010

    CAT5e Solid-Conductor Patch Cable, PVC, Straight-Pinned, Beige, 10-ft. (3.0-m)

    CAT5e Solid-Conductor Patch Cable, PVC, Straight-Pinned, Beige, 10-ft. (3.0-m)

    Double Diamond Warranty
    LIFETIME DoubleDiamond™ Warranty (Standard)

    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 Keyboard/Mouse Extender Remote Unit comes with a standard Lifetime warranty 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.

    You can find this product in the following subcategory(s)

    Add to Cart

    Price: $45.40

    Quantity Available: 64




    Shipping Info

    In Stock - orders received before 5PM ET ship same day

    Weight: 0.156 lbs.
    HxWxD: 1 x 2.1 x 2.3 in.

    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.

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