Thank you for the swift international shipping, seamless order process, and excellent customer service. Much appreciated!

Good device
I have used several of these and find them to be good quality and easy to install. Never got a bad one...

Great product. The expansion port is very suitable for me, for the possibility of my network capacity increasing in the future.

I have achieved 16-24 x DWDM channels over an existing CWDM link with the help of FS OTN team, perfect!

Arrived as expected, seems to be well made.

Good product, fast shipping, prefect as always, will buy again.