We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two OM4 multimode MPO/UPC 16-core loopback cables with female connectors

SMUGDESK

SMUGDESK OM4 Multimode MPO/UPC 16Core Loopback Cable 2Pack

SKU CH-P7DJ-DN3PA

OM4 multimode 16-core MPO/UPC loopback cable for 40G/100G QSFP testing with 50/125µm duplex fiber, supplied as a 2-pack

  • Supports 40G/100G high-speed networks with OM4 50/125µm duplex fiber
  • 16-core MPO/UPC female connectors enable precise QSFP module loopback testing
  • Low-loss UPC polish delivers stable signal feedback for accurate port validation
  • Dual-cable pack allows convenient multi-port testing and spare backup use
  • Designed for switch, transceiver and fiber network troubleshooting and validation

Testing Cable for QSFP Modules

This SMUGDESK OM4 multimode loopback cable uses a 16core MPO/UPC female connector with 50/125m duplex fiber. It is built for validating 40G and 100G QSFP transceiver ports on switches and servers. The two-pack format supports multi-port test routines and provides a spare unit.

Practical Limits of OM4 Multimode

OM4 multimode fiber supports 40G and 100G transmission over the distances defined by that standard. The 50/125m core size and UPC polish keep insertion loss low for accurate loopback signal return. Performance beyond the rated reach of OM4 multimode requires single-mode infrastructure.

16Core MPO/UPC Connector Decides Fit

The 16core MPO/UPC interface determines whether this cable matches your QSFP module and panel. It will not connect to 12core MPO ports, LC duplex transceivers, or single-mode angled-polish interfaces. Verify the exact connector core count and polish type on the equipment under test.

Highlights

  • Supports 40G/100G high-speed networks with OM4 50/125µm duplex fiber
  • 16-core MPO/UPC female connectors enable precise QSFP module loopback testing
  • Low-loss UPC polish delivers stable signal feedback for accurate port validation
  • Dual-cable pack allows convenient multi-port testing and spare backup use
  • Designed for switch, transceiver and fiber network troubleshooting and validation

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose the 2-pack or a single cable for testing multiple 40G/100G QSFP ports?

The 2-pack gives you two 16-core MPO/UPC loopback cables, so you can test two ports simultaneously or keep one as a spare during multi-port validation.

What does the 40G/100G rating mean when I connect this cable to a live QSFP transceiver?

It confirms the OM4 50/125 µm fiber supports the bandwidth needed for 40 Gbps and 100 Gbps signals, letting the transceiver loop traffic back for link verification.

How does the MPO/UPC 16-core interface affect the maximum speed I can test?

The 16-fiber MPO/UPC connector maps directly to QSFP parallel optics, enabling full-duplex 40G/100G loopback without splitting or adapting the signal.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.