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StarTech MPO Loopback Plug Single Mode 9/125 MPO-8 Female Fiber Loopback Adapter MPO/MTP Female Loopback Tester LOOPBACKMTPSM9125F

StarTech MPO Loopback Plug Single Mode 9/125 MPO-8 Female Fiber Loopback Adapter MPO/MTP Female Loopback Tester LOOPBACKMTPSM9125F
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General Information

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.

Technical Information
Device Function:Fiber Optic Cable Testing
Device Function:Network Testing
Device Function:Network Troubleshoot

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:Optical Fiber
Application/Usage:Data Center
Certifications & Standards:

IEC 6175420

TAA Compliant:Yes
Environmental Compliance:Restriction of Hazardous Substances (RoHS)

Warranty
Limited Warranty:2 Year

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.


  • UPC: 065030922661 
  • Mfr's Part #: LOOPBACKMTPSM9125F