A high speed direct attach cable (DAC) is a factory-terminated cable assembly used in data centers for point-to-point connections of active network equipment. These cable assemblies consist of fixed lengths of shielded copper coaxial or fiber optic cable with pluggable transceivers factory terminated on either end. DACs are available in popular transceiver form factors, including SFP, SFP+ and QSFP. High speed interconnect cables are found in data centers, storage area networks and high performance computing centers (HPC) due to the requirement for high bandwidth, connection density and low latency. Four advantages to using DACs are lower price, lower power consumption, plug & play simplicity, and factory terminated performance.
Sourced through Scoop.it from: fiber-optic-blog.com