746964-001 HPE Compatible 40GBS QSFP+ 3 Meter DAC Cable

HPE 746964-001 QSFP+ Compatible 40Gbps 3 Meter Direct Attach Copper Cable Overview

The HPE 746964-001 QSFP+ Compatible 40Gbps 3 Meter Direct Attach Copper (DAC) Cable is a high-speed, low-latency, and cost-effective interconnect solution designed for enterprise networking, data center applications, and high-performance computing environments. This cable provides reliable 40 Gigabit Ethernet (40GbE) connectivity using QSFP+ interfaces, ensuring compatibility with HPE switches, servers, and storage platforms. With a length of 3 meters, it is ideal for short-distance interconnects within racks or between adjacent racks, offering superior performance with minimal power consumption.

Performance Features

High-Speed 40Gbps Transmission

The HPE 746964-001 cable supports 40 Gigabit Ethernet, providing the bandwidth required for applications such as cloud services, virtualization, and storage networking. It ensures fast and reliable data transfers with minimal error rates.

Low Latency and Consistent Throughput

Unlike optical solutions requiring conversion, DACs like this cable provide direct electrical connections that reduce latency, ensuring consistent performance for time-sensitive workloads.

3-Meter Length for Flexibility

With a 3-meter reach, this cable is suitable for interconnects within server racks or between neighboring racks, striking a balance between flexibility and signal integrity.

Compatibility and Integration

Optimized for HPE Systems

The HPE 746964-001 is certified for use across HPE networking and server infrastructures, including blade systems, switches, and high-speed adapters. This ensures seamless integration into enterprise-class data centers.

Industry-Standard QSFP+ Design

QSFP+ compliance guarantees that the cable can be used with other QSFP+ compatible networking equipment, providing deployment versatility in heterogeneous network environments.

Plug-and-Play Simplicity

Unlike transceivers and optical fiber setups, the DAC cable requires no additional components, offering plug-and-play deployment that minimizes downtime and simplifies installation.

Enterprise Use Cases

Data Center Networking

In modern data centers, the HPE 746964-001 connects servers to top-of-rack (ToR) switches or leaf-spine architectures, enabling high-throughput and low-latency communication.

High-Performance Computing (HPC)

HPC clusters benefit from the cable’s low latency and reliable bandwidth, enabling efficient inter-node communication for workloads such as AI, simulation, and real-time analytics.

Cloud Computing and Virtualization

The cable enhances VM migration, software-defined storage, and cloud-native application performance by ensuring high-speed network interconnects.

Enterprise Storage Networking

With its 40Gbps bandwidth, the DAC cable is used to connect enterprise storage arrays to networking fabrics, ensuring quick access to mission-critical data.

Advantages of Direct Attach Copper (DAC) Cables

Cost-Effective Interconnect Solution

DACs like the HPE 746964-001 eliminate the need for transceivers, offering a lower total cost of ownership compared to fiber-based alternatives.

Signal Reliability

Twinax copper construction ensures high signal integrity over short distances, minimizing packet loss and retransmissions.

Comparison with Other Interconnect Options

DAC vs Active Optical Cable (AOC)

While AOCs provide longer reach, DACs like the HPE 746964-001 are more cost-effective for short distances, requiring less power and delivering the same 40GbE speeds.

DAC vs Optical Transceivers

Optical transceivers are flexible but require additional investment in optics and fiber cables. DACs integrate both into a single simplified and budget-friendly solution.

DAC for Short-Range Networking

For distances up to 3 meters, DACs outperform fiber solutions in terms of cost, simplicity, and energy efficiency, making them a preferred choice for rack-level interconnects.

Reliability and Security

Durability in Data Centers

The HPE 746964-001 is built with enterprise-grade copper construction to handle demanding workloads and continuous data transmission without degradation.

Stable High-Speed Transfers

The cable maintains consistent throughput at 40Gbps, supporting mission-critical operations with zero compromise in data integrity.

Secure Data Transmission

Unlike wireless connections, DACs are immune to interception and interference, ensuring secure physical-layer data transfers in sensitive environments.

Industry Applications

Telecommunications

Telecom service providers deploy QSFP+ DACs for backhaul and switching applications where short-range, high-speed connectivity is required.

Financial Services

Financial institutions rely on the cable’s low latency for trading applications, ensuring rapid data delivery with minimal delays.

Healthcare and Research

Research labs and hospitals use DACs for genomic sequencing, medical imaging, and data-driven analytics, ensuring high throughput with stable performance.

Media and Entertainment

Video editing studios and content providers benefit from fast storage access and rendering speeds, made possible by 40GbE interconnects.

Benefits of Choosing HPE 746964-001

HPE-Certified Reliability

As an HPE-certified solution, the cable ensures compatibility, durability, and support within enterprise-class networking infrastructure.

Future-Ready Scalability

While supporting current 40GbE deployments, the cable is designed for compatibility with evolving enterprise networking standards, protecting future IT investments.

Lower Operational Costs

With its plug-and-play nature, zero transceiver costs, and minimal energy draw, the DAC cable reduces both CapEx and OpEx for businesses.