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Desktop Dual DB25 RJ11 2 to 1 Manual Switch FFF All Leads

Switch 1 DB25 an 1 RJ11 at the same time.


2 In Stock
Same Day Shipping (before 5PM ET)
Lifetime Double Diamond™ Warranty (Standard)

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Product Features

  • These dual switches have one common port (C) with a DB25 connector and one common port (C) with an RJ-11, RJ-45, DB25, or 4-wire terminal strip.
  • Each port (A or B) has two standard female connectors.
  • Guaranteed for life!


These switches also have two connectors for each switch position (A or B).

Switch two devices connected to port A or two devices connected to port B simultaneously.

Each switch includes two sets of ABC connectors on the back of the box. Turn the knob on the front panel to switch both sets to either the A or the B position simultaneously.

Tech Specs

Connectors (3) DB25, (3) RJ-11
Dimensions 3.5"H x 6"W x 6.3"D (8.9 x 15.2 x 16 cm)
Leads Supported (25) DB25, (4) RJ-11
MTBF 25,000 cycles
Operating Temperature 32 to 114° F (0 to 45° C)
Relative Humidity Up to 95%, noncondensing
Storage Temperature -40 to +176° F (-40 to +80° C)
Weight 1.5 lb. (0.7 kg)
This product works with:

These products work with:
• Gender Changers (FA402-R2, FA412-R2)
• DB25 Extension Cable (BC00701)
Questions? Contact our FREE Tech Support.

* 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.


Application Diagram


Double Diamond Warranty Diamond

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 Desktop Dual DB25 RJ11 2 to 1 Manual Switch FFF All Leads comes with a standard Lifetime 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.