What is QSFP28 DAC?

　　　　QSFP28 DAC stands for 100G QSFP28 direct attach copper cable. 100G QSFP28 DAC is also called 100G QSFP DAC or 100G QSFP+ Copper Cable.

　　　　From providing flawless, high-flow media to real-time connectivity with customers around the world, today's data centers require ultra-high speed. In order to provide a low-cost solution for data centers to connect switches, Ethernet switch vendors need to maximize the density of optical transceiver ports on their devices. This allows them to provide the maximum number of channels and the lowest cost per bit of traffic. The lowest cost of connecting 100G traffic is to use the 100G QSFP28 DAC Cable.