QFX-SFP-DAC-3M

QFX-SFP-DAC-3M is a factory-terminated 10 Gigabit Ethernet direct-attach cable with SFP+ plugs on both ends and a copper twinax body of 3 m. Wire gauge is listed as 30 AWG, which sets how stiff the cable feels. Juniper's tool lists its part number as 740-030077. Juniper's data gives a maximum power draw of 0.5 W. This is a genuine Juniper part, new in its sealed bag. Typical use is linking servers and storage to the top-of-rack switch at 10G. The 3 m length keeps the run short, which leaves little slack to manage behind the doors. Before ordering, look up the exact switch or router model and Junos release in the Juniper Hardware Compatibility Tool, since support differs by platform and port type. There is no optical monitoring, since the link is electrical end to end. It suits server-to-switch links within a rack, including QFX and EX access switches with SFP+ cages.