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A 24-core MPO/UPC female loopback cable with OM3 multimode fiber for 40G and 100G network testing

SMUGDESK

SMUGDESK 24Core OM3 MPO/UPC Female Loopback Tester Cable

SKU CH-6SM9-8RNKP

24-core OM3 multimode loopback cable with MPO/UPC female connector for 40G and 100G QSFP port testing

  • 24-core high-density MPO/UPC female connector for QSFP port testing
  • OM3 multimode 50/125 µm fiber supports 40G and 100G networks
  • Precise loopback enables quick diagnostics and transceiver verification
  • Wide compatibility with 40G/100G switches, routers and optical modules
  • Rugged compact build suited for data-center and telecom environments

24Core MPO/UPC Female Loopback Cable

This 24Core OM3 multimode loopback cable provides a female MPO/UPC connector for testing 40G and 100G QSFP ports. It targets network engineers and data centre technicians who need a compact tool to verify transceiver operation and port connectivity during installation or maintenance. The 50/125μm fibre supports the high bandwidth demands of modern enterprise and telecom infrastructure. It is not intended for singlemode links or lower density MPO connectors such as 12Core variants.

Sustained Testing Reliability

The OM3 50/125μm fibre maintains stable optical signal transmission throughout extended diagnostic sessions in data centre environments. Its rugged cable construction resists wear from repeated insertion cycles into QSFP and QSFP28 modules across switches, routers and optical transceivers. The precise loopback path returns the transmit signal directly to the receive interface, allowing continuous hardware performance checks without signal degradation over long term use.

24Core High Density MPO Connector

The single specification that decides suitability is the 24Core MPO/UPC female interface, which matches only QSFP and QSFP28 high speed port form factors. Networks using 12Core MPO, LC duplex or singlemode connectors cannot use this tester. Buyers must confirm their equipment presents a compatible 24Core MPO receptacle before purchasing.

Highlights

  • 24-core high-density MPO/UPC female connector for QSFP port testing
  • OM3 multimode 50/125 µm fiber supports 40G and 100G networks
  • Precise loopback enables quick diagnostics and transceiver verification
  • Wide compatibility with 40G/100G switches, routers and optical modules
  • Rugged compact build suited for data-center and telecom environments

Specifications

No published specifications for this item yet.

Questions about this item

Does the 24‑core MPO/UPC loopback generate any heat or noise during continuous 40G/100G testing?

It is a passive fiber adapter with no active electronics, so it produces no heat, noise or power draw while looping optical signals back to the port.

What equipment must I already have to use this OM3 50/125 µm loopback for QSFP validation?

You need a 40G or 100G switch, router or transceiver with an MPO/UPC female port that accepts OM3 multimode fiber.

Will this 24‑core tester work alongside older 10G or 25G modules that use LC or MTP connectors?

No — the loopback is built for 40G/100G QSFP/QSFP28 ports with MPO/UPC interfaces and OM3 multimode fiber; it does not mate with LC or legacy MTP connectors.

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