Based on this product's specifications, here are some alternatives and similar models
StarTech LOOPBACKPLUG100G QSFP28 100G Fiber Loopback Tester
Summary description:
The StarTech LOOPBACKPLUG100G is a professional fiber cable tester designed for loopback testing of QSFP28 100G network interfaces. This silver-colored module is essential for verifying the functionality of high-speed network ports and transceivers. It complies with TAA, RoHS, and CE standards, ensuring reliable performance for data center and enterprise network diagnostics. It provides a precise solution for testing connectivity and signal integrity in 100G environments.