STARTECH 

STARTECH LOOPBACKMTPSM9125F MPO LOOPBACK PLUG SINGLE MODE MPO-8 FEMALE FIBER LOOPBACK ADAPTER

Mfg Part Number:  LOOPBACKMTPSM9125F  
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Price: $88.01
Quantity:
In Stock: 13968
Last Updated: Apr 26, 2026
No Sales Tax except these states
, PO and Wire.

This Single Mode MPO Loopback Plug is a practical tool for verifying signal continuity, insertion loss, and port function in fiber optic networks. Ideal for technicians and IT Pros, it enables fast, consistent testing across MPO-based fiber connections.

Test Single Mode Connections

This 9/125um MPO-8 Loopback Adapter is compatible with OS1 and OS2 cabling in point-to-point and structured installations. IEC and RoHS compliance ensures readiness for standardized deployments and testing in regulated environments.

Accurate Signal Diagnostics

Validate MPO transceivers, isolate faults, and confirm port behavior across high-speed parallel optic links. The fixed 8-fiber configuration with precision-aligned ferrules deliver clean signaling for accurate, reliable diagnostics.

For Enterprise Fiber Switches

The MPO-8 female connector attaches to male MPO/MTP interfaces with alignment pins, supporting high-density testing without disrupting adjacent connections. A durable ABS housing withstands wear from repeated use and is suitable for frequent testing in data centers and edge or on-prem installations.

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number LOOPBACKMTPSM9125F
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name LOOPBACKMTPSM9125F
Packaged Quantity 1
Product Type Fiber Optic Loopback
Technical Information
Device Function Network Troubleshoot
Device Function Network Testing
Device Function Fiber Optic Cable Testing
Physical Characteristics
Color Family Dual Color
Product Color Black
Product Color Green
Height 0.3"
Width 0.8"
Weight (Approximate) 0.10 oz
Miscellaneous
Application/Usage Data Center
Application/Usage Optical Fiber
Certifications & Standards

IEC 6175420

TAA Compliant Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty 2 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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