In data center applications, 100G QSFP28 CWDM4 transceiver has advantage in price compared to 100G PSM4 optical module in medium and long distance transmission. Compared with 100G CLR4 transceiver, 100G CWDM4 is more widely used, so the demand will be larger; the price advantage is also outstanding.
The trend of large and flat of data center push the demands optical transceiver in transmitting rate and quantity. Low cost and transmission distance are the key points to be considered. Therefor, CWDM4 transceiver become the mainstream of 100G cloud computing data center.
The 100G QSFP28 CWDM4 optical module can be upgraded directly from 25G to 100G, which greatly reduces the cost of the cabling system.