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shipping Holiday Shipping Details & Extended Holiday Returns
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  6. Item#: 1B4-00WZ-000R1

  • $271.89

This product is available for $237.59 from a Top Rated seller.

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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

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Return Policies

      We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.

    • Return for refund until: January 31, 2026
    • Return for replacement until: January 31, 2026
    • This item is covered by Newegg.com's Extended Holiday Return Policy.
    • Read full return policy for details.

    Manufacturer Contact Info

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