FS（飞速） 25GBASE-ER 25G SFP28光模块 1310nm 30km

I didn’t recognize this brand so at the very first beginning, I hesitated. But I was pleased that they had good quality and worked so well on the sfp28 ports of my cisco switches.

I am running these modules between my cisco switches over single-mode cables. They perform well for everything I’ve done. That’s really beyond my expectation.

We have been using the Cisco compatible 25G ER modules for the last 4 months to connect two Cisco switches via LC fiber optic patch cables. They worked flawlessly. When we inserted them into the SFP28 ports, they were recognized immediately by the switches and allowed us to configure the interface settings as we expected. No packet errors or interface issues. Perfect modules for us!