HPE 487652-B21 – 10GbE SFP+ 1m Direct Attach Copper Cable

HPE 487652-B21 10GbE SFP+ 1m Direct Attach Copper Cable

Overview

The HPE 487652-B21 is a 1-meter passive Direct Attach Copper cable engineered for high-speed 10Gb Ethernet connectivity within enterprise server racks. It features factory-integrated SFP+ connectors on both ends, providing a high-bandwidth, low-latency alternative to optical transceivers and fiber cabling for short-range links. This copper assembly is designed for point-to-point connections between HPE ProLiant servers, storage arrays, and network switches, eliminating the need for separate transceiver hardware. Managed through standard network interface controllers, it provides immediate physical layer synchronization without requiring manual configuration or firmware tuning.

The cable architecture utilizes high-quality twinaxial copper wiring optimized for 10Gbps data transmission while maintaining a minimal power footprint. Because it is a passive assembly, it consumes zero power from the host SFP+ ports, reducing the overall thermal load and energy consumption of high-density server cabinets. The twinax design provides excellent electromagnetic interference shielding, ensuring signal integrity is maintained even in environments with high electrical noise. The SFP+ connectors incorporate a robust mechanical latching system that enforces secure physical alignment and prevents accidental disconnects during high-vibration operational cycles.

This interconnect solution functions as a cost-effective hardware layer for localized Top-of-Rack switching deployments and intra-rack storage connections. Its short 1-meter length is specifically designed to reduce cable clutter and improve airflow within server enclosures by eliminating excess slack. The assembly supports hot-swapping, allowing network engineers to perform maintenance or reconfigure port layouts without interrupting the power supply to the host chassis. The standalone physical structure ensures that data processing remains at the network interface level, isolating the host CPU from signal processing overhead.

IT infrastructure teams deploy this 10GbE DAC cable to establish reliable, high-speed pathways between compute nodes and centralized storage processors. The pre-terminated design simplifies installation by removing the complexity of fiber cleaning and transceiver mating. It is particularly effective in high-performance computing and virtualization clusters where low-latency communication is critical for application synchronization. By utilizing this copper-based interconnect, organizations can scale their 10Gb network capacity while significantly reducing the total cost of ownership compared to traditional optical solutions.

Typical Deployment Scenarios

This 1-meter SFP+ copper cable is deployed in centralized enterprise data centers, high-performance server clusters, and local storage network racks. It is utilized by network engineers to link ProLiant servers to Top-of-Rack switches, connect primary storage controllers to distribution fabrics, and establish high-speed redundant links within the same equipment cabinet.

Specifications

Compatibility / Ecosystem

The 487652-B21 cable is fully validated for use with HPE ProLiant Gen8, Gen9, and Gen10 servers equipped with SFP+ network adapters. It provides seamless interoperability with HPE FlexFabric, Aruba, and StoreFabric switches, as well as MSA storage arrays. The assembly is recognized by standard network operating systems including Windows Server, Linux, and VMware ESXi as a native 10GbE copper interface.