As the COVID-19 spread the upstream vendors may closed, Now the high speed SFP transceiver use the Japan/USA key materials like OSA componets/Chipest etc.

So raw materials will be scarce soon, Please prepare some stock in advance as following:

-10G SFP+ ER/ZR
-25G SFP28. SR/LR/CWDM/DWDM
-40G QSFP+ SR4/LR4
-100G QSFP28 SR4/LR4/ER4

-Now we have fast deliver for 25G SFP28.
Another possibility is that the price of these materials will rise. Please contact me to discuss in further. thanks