Advantages and Disadvantages of Direct Attach Twinax Cable
Driven by need for high speed Ethernet and increasing services like Cloud and virtual data center, many data centers have been loaded with numerous cables and various equipment. Due to this case, shortage of data center space is common but it’s getting difficult and expensive to build new or expand existing locations. Today this post intends to introduce a type of cable—direct attach twinax cable, which can solve this problem effectively. Overview of DAC Direct attach twinax cable is a type of copper cable similar to coaxial cable, but it has SFP+, QSFP+ or QSFP28 plus at each end integrated. DACs are usually used in data centers for short transmission between racks. Generally, according to the construction differences, the DAC comes in two types: passive DAC and active DAC. Passive DAC are suitable for short distances up to 10 m and active DAC has a little longer transmission distance up to 15m at 10Gbps or 40Gbps, because it has an active component to boost/receive signal. And