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Small yellow MPO loopback plug with female connector

STARTECH

STARTECH MPO Loopback Plug Single Mode 9/125 MPO-8 Female

SKU CH-6MFD-1HTCY

Single-mode MPO loopback plug with 9/125 µm fiber for testing MPO-8 female ports

  • Single-mode 9/125 µm fibre for low-loss long-haul links
  • MPO-8 female connector enables quick polarity and continuity checks
  • Loopback design routes TX to RX for instant transceiver testing
  • StarTech build quality ensures reliable alignment in patch panels and labs

Single-Mode Loopback Plug

The StarTech MPO loopback plug provides a single-mode 9/125 fibre path with an MPO-8 female connector for quick link verification. Technicians use it to confirm continuity on patch panels, transceivers or test equipment without deploying a live link. Its compact form fits dense patching fields and requires no external power.

Sustained Test Reliability

The ceramic ferrule maintains stable insertion loss during extended loopback sessions so repeated measurements stay consistent. Passive construction means no active circuitry to drift or overheat when the plug remains mated for long periods. The single-mode 125 µm core supports standard telecom wavelengths for accurate return-loss readings. Buyers who need multi-mode fibre or a different connector count will need a separate adapter.

How it compares

Measured against everything we stock in Fiber Optic Patch Cables, at today’s prices. Recalculated every night.

Price $56.99
Pricier than about 69% of the 812 comparable items (median $29.99).

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Specifications

Size & build
Shipping weight0.45 kg
Package size25 × 25 × 25 mm

Questions about this item

Does this MPO loopback plug generate any heat or consume power when left connected for extended testing?

This passive single-mode loopback plug contains no active electronics, so it produces no heat and draws no power during continuous use.

What fiber patch cords or connectors must I already have to use this MPO-8 female loopback plug?

You need single-mode 9/125 µm fiber cables terminated with MPO-8 male connectors to mate with the female ports on this loopback adapter.

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