The 200G QSFP-DD DAC primarily enables high-bandwidth 200G links and supports 200G Ethernet rate. It provides a QSFP-DD to QSFP-DD copper direct-attach solution. 200G QSFP-DD DAC cables are suitable for very short links and offer a cost-effective way to establish a 200-Gigabit link between 200G QSFP-DD ports of switches/routers within racks and across adjacent racks. FS currently offers passive copper cables in lengths of 0.5, 1, 1.5, 2, 2.5 and 3 meters.
