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| Built-in display | No |
|---|---|
| Compliance certificates | Trade Agreements Act (TAA), RoHS, CE |
| Connector gender | Male |
| Depth | 126 mm |
| Height | 13.3 mm |
| Housing material | Metal, Plastic |
About this item
Perform loopback testing and verify signal continuity across QSFP28 connections and port interfacesThis 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...
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From the manufacturer
About this product
- <b>Reliable QSFP Testing</b>: Create a loopback test connection with this QSFP28 passive electrical loopback module; Connects directly to QSFP28 ports for testing signal continuity and verifying electrical link integrity at 100Gbps
- <b>Accurate Test Performance</b>: Supports 28Gbps per lane across four lanes with 100Ω impedance for stable signal reflection; Low jitter and consistent lane performance ensure reliable test results during diagnostics
- <b>Built for Durability</b>: Optimized for multiple test cycles with a compact, low-power design; Meets IEEE 802.3 requirements and MSA compliance for universal compatibility and guaranteed performance
- <b>Field-Ready Design</b>: Compact module is ideal for technicians performing port-level diagnostics and hardware validation; Quickly confirm QSFP28 port behavior during system maintenance or troubleshooting; No optical transceiver required
- <b>The IT Pro's Choice</b>: Our network tools and testers are rigorously tested in our Innovation Lab to ensure enterprise-grade reliability and durability; Built for quick diagnostics and routine maintenance across copper and fiber networks; Backed by free lifetime 24/5 multi-lingual technical assistance
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.
Product details
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| Built-in display | No |
|---|---|
| Compliance certificates | Trade Agreements Act (TAA), RoHS, CE |
| Connector gender | Male |
| Depth | 126 mm |
| Height | 13.3 mm |
| Housing material | Metal, Plastic |
| Master (outer) case height | 400 mm |
| Master (outer) case length | 335 mm |
| Master (outer) case width | 430 mm |
| Networking standards | IEEE 802.3ba |
| Operating temperature (T-T) | -40 - 75 °C |
| Package depth | 20 mm |
| Package height | 15 mm |
| Package weight | 46 g |
| Package width | 95 mm |
| Product colour | Silver |
| Products per master (outer) case | 1000 pc(s) |
| Product type | Fiber cable tester |
| Storage temperature (T-T) | -40 - 75 °C |
| Supported connectors | QSFP28 |
| Test type | Loopback testing |
| Weight | 38 g |
| Width | 18.8 mm |
Logistics
| EAN | 0065030923491 |
|---|---|
| Unit of measure | — |
| Weight | — |
| Dimensions | — |
| Dangerous goods | No |
Warranty
- 12-month warranty on everything we sell.
- Runs from the day your order is delivered.
- Faults under normal use are repaired, replaced or refunded.
Payment
- Visa and Mastercard, processed securely by Tyl by NatWest with 3D Secure.
- PayPal — your PayPal balance or a saved card or bank account.
- Clearpay, Klarna and Billie — pay later or in instalments, processed by Stripe.
- No surcharge on any payment method; refunds go back to the way you paid.
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Choose at checkout. 18+, T&Cs apply, credit subject to status.
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