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16-core OM3 multimode MPO/UPC female loopback cable, aqua jacket

SMUGDESK

SMUGDESK 16Core OM3 MPO/UPC Female Loopback Tester Cable

SKU CH-ZFBR-CB7GZ

16-core OM3 multimode 50/125 µm loopback cable tests 40G and 100G QSFP ports

  • 16-core MPO/UPC female design enables direct QSFP28 port loopback testing
  • OM3 50/125µm multimode fiber supports stable 40G and 100G network transmission
  • Reliable signal loopback allows quick port diagnostics and fault detection
  • High-density compatibility suits 40G/100G switches, transceivers and routers
  • Rugged compact build withstands long-term data center and telecom use

16Core MPO/UPC Loopback Tester

This 16core OM3 multimode fiber loopback cable provides precise optical signal return for QSFP and QSFP28 module port testing. It is built for network engineers and data center technicians who need to verify 40G and 100G link integrity during installation or maintenance. The MPO/UPC female interface connects directly to transceiver ports for immediate diagnostics.

Passive Optical Operation

As a passive loopback adapter, the unit draws no electrical power and generates no heat or acoustic noise during use. Its rugged compact construction withstands repeated insertion cycles in dense patch panels and high-density switching environments. The duplex 50/125 micron fiber path ensures stable signal return without active components.

OM3 50/125 Multimode Specification

The OM3 50/125 micron fiber rating determines compatibility with 40G and 100G short-reach multimode links. Networks requiring single-mode wavelengths or different core sizes cannot use this tester. Buyers needing to validate OS2 or wideband multimode standards must select a different loopback module.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 60% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 16Core MPO/UPC female loopback into a QSFP28 port for 100G testing?

Align the key on the MPO connector with the port slot, insert straight until it clicks, then run the transceiver self-test to verify the optical loopback path is active.

What maintenance will the OM3 50/125µm fiber ends need over time?

Inspect and clean both MPO ferrule faces with a lint-free wipe and isopropyl alcohol before each use to prevent contamination that degrades 40G and 100G signal integrity.

What is the first limit that appears when the loopback runs continuously in a 100G link?

Insertion loss and return loss of the OM3 multimode fiber set the practical distance and power budget ceiling for sustained 100G operation.

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