BLACK BOX 

BLACK BOX SP387A USB-TO-USB ISOLATOR - 4-KV, 1-PORT, GSA, TAA, 45 DAY STANDARD RETURN POLICY

Mfg Part Number:  SP387A  
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Price: $145.25 + Free Shipping
Quantity:
In Stock: 22
Last Updated: Oct 05, 2026
No Sales Tax except these states
, PO and Wire.

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.

Main Specification
General Information
Manufacturer Black Box Corporation
Manufacturer Part Number SP387A
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Model SP387A
Product Name USB-to-USB Isolator - 4-kV, 1-Port
Packaged Quantity 1 Pack
Product Type Surge Suppressor/Protector
Technical Information
Receptacles 1 x USB
Physical Characteristics
Power Cord/Cable Length 3.3 ft
Height 1.7"
Width 2"
Depth 0.8"
Weight (Approximate) 6 oz
Miscellaneous
Package Contents
  • USB-to-USB Isolator - 4-kV, 1-Port
  • 1-meter (3.3-ft.) USB Cable
Country of Origin United States
Environmentally Friendly Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Warranty
Limited Warranty 5 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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