Startech - QSFP28 passive loopback testing module - 100GbE, 40GbE - TAA Compliant

Description

Perform loopback testing and verify signal continuity across QSFP28 connections and port interfaces

This QSFP28 Loopback Module is designed for testing 100G ports in switches, NICs, and other QSFP28-equipped devices. It supports passive electrical loopback for verifying signal continuity, link stability, and port behavior without requiring active optics.

Test 100G QSFP28 Connections

The QSFP28 Loopback Adapter emulates 4-lane electrical testing for QSFP28 ports operating at 100Gbps, and supports 40GBASE and 100GBASE Ethernet. It is MSA compliant and meets IEEE 802.3 requirements for reliable performance and universal compatibility.

Accurate Signal Diagnostics

Perform electrical loopback testing for full 100G link verification. Ensure consistent signaling with 100Ω impedance and low jitter for stable, repeatable test results under real-world conditions.

For Enterprise Network Switches

Connect directly to QSFP28 ports on switches, routers, and NICs for inline port testing. Compact and low-power, it is an essential tool for network technicians and IT pros in data centers and edge or on-prem installations.

Specifications

Features

Product type	Fiber cable tester
Test type	Loopback testing
Supported connectors	QSFP28
Built-in display	No
Product colour	Silver
Housing material	Metal, Plastic
Connector gender	Male
Networking standards	IEEE 802.3ba

Certificates

Compliance certificates	Trade Agreements Act (TAA), RoHS, CE

Operational conditions

Operating temperature (T-T)	-40 - 75 °C
Storage temperature (T-T)	-40 - 75 °C

Weight & dimensions

Width	18.8 mm
Depth	126 mm
Height	13.3 mm
Weight	38 g

Packaging data

Package width	95 mm
Package depth	20 mm
Package height	15 mm
Package weight	46 g

Logistics data

Master (outer) case width	430 mm
Master (outer) case length	335 mm
Master (outer) case height	400 mm
Products per master (outer) case	1000 pc(s)