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Yellow 24-core MPO/UPC duplex loopback cable with OM4 multimode fiber

SMUGDESK

SMUGDESK OM4 24Core MPO/UPC 50/125 Duplex Loopback Cable 40G 100G QSFP

SKU CH-EV8W-0EH1D

A 24-core OM4 multimode loopback cable with MPO/UPC connectors for 40G and 100G QSFP network testing

  • OM4 multimode fiber delivers stable 40G and 100G transmission
  • 24-core MPO/UPC connector enables precise loopback signal testing
  • Self-test design verifies QSFP modules without extra equipment
  • Compact build speeds up port diagnostics in data centers and labs
  • Durable 50/125 duplex construction withstands repeated network inspections

Loopback Cable for 40G and 100G QSFP Validation

This OM4 multimode fiber loopback cable provides a 24core MPO/UPC female connector with 50/125m duplex fiber. It is designed for engineers and technicians who need to verify QSFP module operation and port connectivity in highspeed network environments.

Stable Signal Return Under Continuous Test Loads

The precisionpolished MPO/UPC interface maintains consistent return loss during extended validation sessions. OM4 multimode construction supports sustained 40G and 100G data rates without signal degradation, allowing reliable loopback diagnostics across data center and laboratory infrastructures.

Replaces Ad Hoc Patch Cord Loopbacks

Technicians who currently build temporary loopbacks from patch cords gain a compact, repeatable tool that eliminates alignment errors. The jump is worth it when validating dense QSFP port populations before live deployment, reducing troubleshooting time in enterprise and lab settings.

Highlights

  • OM4 multimode fiber delivers stable 40G and 100G transmission
  • 24-core MPO/UPC connector enables precise loopback signal testing
  • Self-test design verifies QSFP modules without extra equipment
  • Compact build speeds up port diagnostics in data centers and labs
  • Durable 50/125 duplex construction withstands repeated network inspections

Specifications

No published specifications for this item yet.

Questions about this item

Does the OM4 24Core MPO/UPC loopback cable generate heat or draw power when used continuously for all-day network testing?

No, the cable is a passive fiber-optic loopback with no active electronics, so it produces no heat and consumes no power during continuous operation.

What equipment must I already have to use this 50/125µm duplex loopback for 40G or 100G QSFP validation?

You need a QSFP transceiver or switch port with a matching MPO/UPC interface and a test instrument or software capable of sending and receiving traffic through the looped fibers.

Will this 24-core OM4 loopback work alongside older OM3 or legacy multimode patch cables already installed in my rack?

Yes, the OM4 50/125µm fiber is backward-compatible with OM3 links, so it can be used for port testing in mixed OM3/OM4 environments without changing the existing cabling.

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