Juniper QFX-QSFP-DACBO-3M QSFP+ to SFP+ 40GE DAC | Twinax Cable

Connect a QSFP+ port to SFP+ endpoints with a breakout cable designed for short-reach data center use. The Juniper QFX-QSFP-DACBO-3M supports 40 GbE to 10 GbE fan-out over a 3 m copper assembly, giving infrastructure teams a practical way to extend port utility without adding transceivers and patch panels. This cable is a strong fit for high-density switching fabrics, aggregation layers, and server access designs where a single uplink must serve multiple lower-speed connections. Direct attach copper keeps the physical layer simple, reduces power consumption relative to optical alternatives, and helps maintain orderly cable routing in crowded racks. The 3 m length provides enough reach for adjacent cabinets or within-row connections while staying short enough to preserve signal quality and minimize slack. For teams standardizing on Juniper hardware, the QFX-QSFP-DACBO-3M offers a direct, cost-conscious way to build out 40 GbE infrastructure without overbuying optics. It is the kind of cable that earns its place in production: specific, efficient, and suited to the realities of modern rack design.