BLACK BOX 

BLACK BOX SP385A-R3 USB TO RS232 OPTO-ISOLATED CONVERTER, GSA, TAA

Mfg Part Number:  SP385A-R3  
Image may not reflect the actual item.
Price: $202.77
Quantity:
In Stock: 22
Last Updated: Aug 29, 2026
No Sales Tax except these states
, PO and Wire.

Convert and Protect Serial Interfaces

This compact USB-to-RS-232 opto-isolator enables you to connect an RS-232 serial device to a USB port while protecting equipment from voltage spikes, electrical noise, and ground loops. Ideal for industrial and mission-critical applications, it helps ensure reliable serial communications and safeguards connected devices from potentially damaging electrical disturbances.

The opto-isolator requires no PCI or ISA slots and does not consume system IRQ resources. Simply connect it to an available USB port using an optional USB Type-A to Type-B cable, and Windows automatically recognizes and configures the device as an additional COM port for quick, hassle-free installation.

Main Specification
General Information
Manufacturer Black Box Corporation
Manufacturer Part Number SP385A-R3
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Model SP385A-R3
Product Name USB to RS232 Opto-Isolated Converter
Packaged Quantity 1
Product Type Transceiver/Media Converter
Interfaces/Ports
Total Number of Ports 2
USB Yes
Power Description
Power Source USB
Physical Characteristics
Height 0.8"
Width 1.7"
Depth 3"
Weight (Approximate) 6.40 oz
Miscellaneous
Package Contents
  • (1) USB to RS-232 Converter with Isolation
  • (1) USB cable (3-ft.)
  • Drivers on CD
  • Quick Start Guide
  • Environmentally Friendly Yes
    Environmental Compliance Restriction of Hazardous Substances (RoHS)
    Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
    Country of Origin United States
    TAA Compliant Yes
    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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