SFP + DAC CABLE Cable assemblies for interconnection between cards (including both end interface modules) are called direct-attached cables - Direct Attach Cables (DAC). The DAC cable assemblies are mainly used for stacking connections of Ethernet 10G switches , TOR switches and server interconnects, Fiber Channel interconnects, InfiniBand device interconnects, and interconnection between servers and storage devices. Transfer rate of 10Gbps, support hot-swappable. RoHS compliant, C-RoHS compliant
Advantages: 10G optical module expensive, 10G SFP + DAC direct connection can reflect the advantages of low cost and low power consumption.