For QSFP28 100G to 4*SFP28 25G DAC, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our QSFP28 100G to 4*SFP28 25G DAC has been well received by many customers and enjoyed a good reputation in many countries. Zhaolong InterconnectQSFP28 100G to 4*SFP28 25G DAC have characteristic design & practical performance & competitive price, for more information on the QSFP28 100G to 4*SFP28 25G DAC, please feel free to contact us.