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The Extreme Networks 10412 is a 2-meter passive copper direct attach cable with QSFP28 connectors on both ends, built for 100GbE links. Passive copper keeps power draw and latency low over short runs, and fixed-length DACs like this are the standard way to connect top-of-rack switches to servers or to stack switches in a rack. It suits data center and lab builds where the two ports sit within a couple of meters. Against optical transceivers and active optical cables, it is simpler and draws far less power, but it cannot span long distances and only works between QSFP28 ports.
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This is a 2 meter direct attach cable for 100GbE connections. It has a QSFP28 connector on each end and uses passive copper construction.
