Who is the manufacturer of the SP390A-R3 USB to RS422 & 485 converter?

The manufacturer of the SP390A-R3 USB to RS422 & 485 converter is Black Box.

What type of converter is the Black Box Network Services SP390A-R3?

The Black Box Network Services SP390A-R3 is a USB to RS422 & 485 converter with opto-isolation.

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Black Box Network Services SP390A-R3 USB to RS422 & 485 Converter with Opto-Isolation

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MAIN OVERVIEW FEATURES: Total Number of
Ports:
2USB: YesPower
Source: USB
Height:
3"Width: 1.7"D
epth: 0.8"E nvironmentally
Friendly: YesEnvironmental
Certification: RoHSWEEE
Country of Origin: United
StatesTAA Compliant: YesLimited
Warranty: 5 Year

Model
Brand	Black Box

Details
Color	N/A

Additional Information
First Listed on Newegg	October 28, 2020

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
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Manufacturer Contact Info

Manufacturer Website
Support Phone: 1-877-877-2269
Support Website
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Item#: 1B4-00WZ-000R1