Direct Attach Cable HPE R5Z76A QSFP56 200G 1m Black

The Direct Attach Cable HPE R5Z76A QSFP56 200G 1m Black is a passive twinax copper connection cable with QSFP56 connectors on both ends, designed for short-reach, high-bandwidth links inside and between adjacent server racks. With a 1 meter length and a compact black jacket, this 200 Gigabit cable provides a low-latency physical layer connection suitable for top-of-rack and aggregation switch deployments in data center environments.

Advantages

This direct attach cable offers high throughput and low latency for 200Gbps links without the need for optics, reducing power consumption and component complexity. Its passive twinax construction provides predictable signal performance over short distances, and QSFP56 connectors ensure compatibility with devices that support the QSFP56 form factor. The 1 m length minimizes excess slack in rack cabling and supports tidy cable management while the robust outer jacket protects conductors in dense installations.

Suitable for

• Short-reach interconnects between servers and top-of-rack switches
• Connections between adjacent racks within the same data center room
• High-bandwidth uplinks in leaf-spine and aggregation network fabrics
• Low-latency links for virtualization hosts, storage nodes, and compute clusters

Key specifications

• Data rate: 200 Gbps (aggregate)
• Connector type: QSFP56 on both ends
• Media: passive twinaxial copper
• Length: 1 meter
• Color: black
• Typical use range: short-reach (in-rack and adjacent racks)

How to use

Install by inserting each QSFP56 connector into the corresponding QSFP56 port on network switches, NICs, or other compatible devices until the connector latches. Ensure both ends are fully seated and that ports are powered down or traffic is quiesced if required by your equipment vendor before hot-plugging. Route the cable to avoid sharp bends and mechanical strain, and secure excess cable to maintain airflow and access in the rack.

Usage recommendations

Verify device compatibility with QSFP56 passive DACs before deployment; consult switch and NIC documentation for supported cable types and firmware or BIOS requirements. Keep cable runs within recommended short-reach distances and avoid routing near strong EMI sources. For high-density deployments, plan cable management to prevent connector stress and preserve signal integrity.