Black Box 1-800-316-7107 


Helping you is our priority at Black Box.

We're committed to providing the best customer service in the industry. We're here for you, 24/7, 365.

We'll call you

A technical expert will call you shortly.

Submit Connecting call...

Call Us

Customer Sales & Service Support

Black Box Brand Product Support

IT Services & Voice Support

Send us a FAX


RS-232 Bulk Serial Cable - Double-Shielded, PVC, 4-Conductor, Custom Length ​

Send RS-232 data up to 500 feet in noisy environments.

Kit Pricing

Starting at $0.36

Limited Quantity In Stock
Typically Ships within One Week
Lifetime Double Diamond™ Warranty (Standard)

Product Features

  • Low capacitance, braided foil shield.
  • 24 AWG stranded construction.
  • Guaranteed for llife!


Ideal for noisy environments where cable runs are next to power lines and other cabling systems that cause Interference.

Tech Specs

Cable Type Twisted pair, PVC jacket
Capacitance 12 pF/ft. ± 2 pF/ft.
Conductor Gauge 24 AWG (7 x 32 AWG) stranded
Resistance 25 ohms/1000 ft.
Shield One foil and one copper braid

* 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 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 Custom Length RS232 Bulk Serial Cable DBL-Shielded CM 4-Conductor 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.