Detailed Specifications
HPE 10GbE SFP+ 3m Direct Attach Copper Cable
Overview
The HPE 487655-B21 is a high-speed, passive direct attach copper (DAC) cable designed to deliver reliable 10GbE connectivity in dense data center environments. It provides a direct, point-to-point link between SFP+ enabled ports on servers, switches, and storage arrays, solving the need for a cost-effective and low-latency solution for short-distance interconnects, primarily within a server rack or between adjacent racks. This approach eliminates the higher cost and power consumption associated with optical transceivers for short-reach applications. At its core, this cable leverages passive twinaxial technology, which ensures a direct electrical connection with minimal signal degradation and near-zero latency. B487655-B21ecause it contains no active electronic components, the cable draws negligible power, contributing to lower operational expenses and reduced cooling requirements within the rack. This passive design is critical for top-of-rack (ToR) switching architectures where dozens of servers must connect to a switch with maximum efficiency and minimal points of failure. Engineered for seamless deployment, this 3-meter cable is ideal for connecting server network interface cards (NICs) directly to a ToR switch or for linking stacked switches together. Its SFP+ form factor is hot-pluggable and MSA (Multi-Source Agreement) compliant, ensuring broad compatibility and simplifying installation and network maintenance. Management is straightforward as the cable requires no configuration, acting as a transparent, high-bandwidth pipe that is immediately recognized by the connected hardware.
