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10-Pack LC/UPC Fiber Loopback Adapters, Singlemode 9/125m OS2 Duplex

-- : Routes TX directly to RX via embedded fiber for instant transceiver self-testing without extra cables or a remote device
: Plug in locally to check port and transceiver health. Use with a power meter to measure link loss and identify dirty or damaged connectors
: Delivers low insertion loss and high return loss for stable testing. Housing includes a dust cap to protect the polished end-face
: LC/UPC SM, LC/OM2 MM, LC/OM3 MM, SC/UPC SM, SC/OM3 MM. All duplex connectors with 9/125 singlemode or 50/125 multimode fiber to fit your transceiver
, - : Compact, lightweight, and requires no configuration. Ready for factory burn-in, field commissioning, and on-site troubleshooting

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LC/UPC Fiber Optic Loopback Adapter Optical Cable 9/125 Singlemode Test Adapter Connector for Testing Applications, 10-Pack

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First Listed on Newegg	September 23, 2026

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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