100GBASE-SR4 QSFP28 Optical Transceiver Module, 850nm 100m MMF, DOM Monitoring, MPO-12/UPC Interface, Breakout to 4 × 25G-SR

It's pricey at $70 for a home lab, but it's 100 gigabit Ethernet. Great value compared to the original brand's part, useful for those severe overkill home lab deployments (which is where it's going for me). No surprises, no complaints.

This SpeedyFiber module does exactly what it promises: fast, stable, and hassle-free performance. I used it in a Cisco environment, and it was fully compatible with no configuration headaches. Plug-and-play installation took seconds, and the transceiver synced up immediately with clean, consistent signal quality.I appreciated the MPO-12 connector being well-built and the module feeling solid overall. It performed reliably across short-distance fiber links, and I tested it on both OM3 and OM4 cabling with excellent throughput, no drops, no errors.The heat output stays manageable, and there were no firmware or hardware hiccups after hours of continuous use. The labeling and packaging were also clear and professional.One area where it could improve: the included documentation is very minimal. A quick-start guide or compatibility reference chart would’ve been useful, especially for less experienced users.That said, for enterprise or lab environments needing solid 100G connectivity, this transceiver is a dependable option that won’t let you down