Regardless of the industry, the location, whether it is a data center or call center, commercial or industrial, it is an indisputable fact that bandwidth and data storage needs are always increasing. To satisfy our never ending hunger for more data and quicker access to it, technology manufacturers must constantly develop and release newer, faster technologies. One popular and proven technology is Direct Attach Cables. Direct Attach Cables offer preterminated connection solutions for 25Gbit/s, 50Gbit/s and 100 Gbit/s. Utilizing the same port as an optical transceiver, the copper based DAC is a more cost effective solution for short run applications, up to 5 meters, than fiber since it does not require power for signal conversion from electrons to photons.
SFP28 and QSFP28 Defined
SFP28 (Small Form Pluggable) is a title applied to both a network connector and a network port. SFP28 is a type of link utilized for both fiber cables, and copperbased Direct Attach Cables (DACs). As a connector, SFP28 defines a type of enhanced hot-swappable connector designed to support switch and server data rates of 25 Gbit/s Ethernet. It contains 20 pins. It is backwards compatible with all SFP ports. Read more
Direct Attach Cables manufactured by Hitachi include