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Two OM4 multimode fiber loopback cables with 12core MPO/UPC connectors

SMUGDESK

SMUGDESK 2Pack OM4 12Core MPO/UPC Loopback Cable 50/125m 40G 100G QSFP

SKU CH-7WA2-6EYC6

Two 12-core OM4 multimode loopback cables with 50/125µm fiber and MPO/UPC connectors for 40G and 100G QSFP testing

  • Two cables enable batch testing and backup
  • OM4 50/125 µm fiber supports 40G and 100G speeds
  • 12-core MPO/UPC connector ensures reliable loopback signal
  • Plug-and-play design allows quick self-diagnosis without tools
  • Ideal for data-centre and lab QSFP module verification

2-Pack OM4 Loopback Test Kit

This two-pack of OM4 multimode fiber loopback cables provides a cost-effective set for batch testing, maintenance and backup scenarios. Each cable uses a 12-core MPO/UPC female connector with 50/125µm duplex fiber for reliable signal loopback. The kit targets network engineers and data-center technicians who need quick self-diagnosis tools for QSFP module verification without extra equipment.

Thermals Noise Power

As passive fiber-optic components, these loopback cables generate no heat, produce no acoustic noise and draw zero electrical power during operation. They simply redirect optical signals back into the transmitting port for immediate link validation. Their plug-and-play design ensures instant readiness in data centers, communication laboratories and enterprise IT environments where silent, zero-watt test accessories are required.

Upgrade Path

The cables replace makeshift patch-cord loops or single-unit testers that slow down parallel port validation across 40G and 100G infrastructure. The jump is worth it when teams must verify multiple QSFP ports simultaneously during deployment audits or troubleshooting windows. They do not suit installers who need angled connectors, single-mode fiber types or connector polishes other than the supplied UPC finish.

Highlights

  • Two cables enable batch testing and backup
  • OM4 50/125 µm fiber supports 40G and 100G speeds
  • 12-core MPO/UPC connector ensures reliable loopback signal
  • Plug-and-play design allows quick self-diagnosis without tools
  • Ideal for data-centre and lab QSFP module verification

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 12Core MPO/UPC female connector for loopback testing?

Insert the MPO/UPC female connector directly into the QSFP module port; the keyed alignment ensures correct fiber mapping without extra tools.

What maintenance will the OM4 50/125µm fiber need over time?

Inspect and clean the MPO/UPC end-faces before each use with a fiber microscope and lint-free wipes; replace the cable if insertion loss rises or the connector housing is damaged.

What limits sustained use at 100G speeds?

The OM4 multimode fiber supports 40G and 100G operation, but modal dispersion in the 50/125µm core becomes the limiting factor as link distance increases.

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