#SP387A
USB-to-USB Isolator - 4-kV, 1-Port
USB isolator for protecting devices from electrical disturbances
Product Features
- Provides 4-kV high-voltage isolation
- Protects against EMI/RFI, surges, and ground loops
- USB-powered with no external power required
- Includes integrated USB cable
- Protects against EMI interference
Protect sensitive USB devices and connected equipment from damaging electrical surges, voltage spikes, and ground loops with this compact USB isolator. Providing up to 4 kV of isolation, it is ideal for medical, industrial, laboratory, and measurement applications where electrical noise and interference can compromise performance and data accuracy.
By breaking ground loops and reducing electrical noise, the isolator helps improve signal integrity, enhance measurement reliability, and prevent costly equipment damage. USB 1.1 compliance ensures broad compatibility with a wide range of USB devices and systems.
Installation is quick and simple, just connect the isolator between your computer and USB device. A 1-meter (3.3-ft.) USB cable is included for added convenience, making it easy to deploy protection wherever it is needed.
5 Years Double Diamond™ Warranty (Standard)
Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box.
Our Double Diamond Warranty* protects your Black Box® brand products from manufacturing and/or material defects.
The SP387A comes with a 5 Years Double Diamond™ Warranty (Standard) . During the warranty period, Black Box will repair or replace your damaged equipment at NO CHARGE!*
What’s more, we also have a 30-day return policy on most products. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package to receive a full refund.** Click here to find your local sales office to obtain a Return Authorization.
Extended Double Diamond Warranty.
Extend the warranty on select products or protect eligible previously purchased Black Box® brand items for an additional year - at just 10% of the original purchase price or for three years for only 20% of the purchase price.
* Warranty subject to certain exclusions and limitations. Click here to view our full terms and conditions.
** Returns contingent upon specific exclusions and limitations. Click here to view our full return policy.




