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400GBASE-ZR Coherent QSFP-DD 80-120km LC SMF DOM Optical Transceiver Module
not bad! The speed is fast, there is no problem with the quality, but the price is a little expensive, and we will continue to cooperate.
I have been looking for this product for a long time, just know that commbroad has researched this product, the price is very good, and the technology is the latest, great.