HPE 100Gb QSFP28 to QSFP28 3m Direct Attach Copper Cable

Overview

The HPE 845406-B21 is a 3-meter direct attach copper cable designed to connect two QSFP28 ports at speeds up to 100Gbps. It serves as a reliable link for high-speed networking equipment, particularly in data centers and server racks where short-distance connections are essential. With a copper construction and a diameter of 8.8 mm, this cable balances flexibility and durability, supporting 100GBase direct attach standards for broad compatibility with devices from HPE, Cisco, Arista, and Juniper.

Its design ensures low latency with a signal delay of only 4.5 nanoseconds per meter, making it suitable for environments that demand fast and efficient data transmission. The cable also meets the SFF-8665 standard and operates reliably within a temperature range of 32 to 158 degrees Fahrenheit, providing consistent performance in demanding network setups.

Key features

• Supports 100Gbps QSFP28 to QSFP28 connections for high-speed data transfer
• 3-meter length ideal for short-range connections in dense networking environments
• Copper cable with 8.8 mm diameter offers flexibility to fit into tight spaces without compromising signal integrity
• Minimum bend radius of 45 mm reduces risk of damage and maintains cable longevity
• Low signal delay of 4.5 nanoseconds per meter ensures minimal latency for time-sensitive applications
• Complies with 100GBase direct attach standards for broad device compatibility
• 110 ohm impedance maintains consistent signal quality across connections
• Compatible with major networking brands including HPE, Cisco, Arista, and Juniper
• Meets SFF-8665 standard for reliable and standardized performance
• Operates effectively within a temperature range of 32 to 158 degrees Fahrenheit, suitable for typical data center conditions

Key specs

• Data rate: 100 Gbps
• Connector type: QSFP28 to QSFP28
• Cable length: 3 meters
• Cable diameter: 8.8 mm
• Minimum bend radius: 45 mm
• Signal delay: 4.5 nanoseconds per meter
• Impedance: 110 ohms
• Standard compliance: SFF-8665, 100GBase direct attach
• Operating temperature: 32 to 158 degrees Fahrenheit

Connectivity and compatibility

This cable is designed to seamlessly connect QSFP28 ports, commonly found on high-performance switches and servers. Its adherence to 100GBase direct attach standards ensures it works well with a variety of networking equipment from leading manufacturers. Whether integrating into an existing HPE infrastructure or connecting devices from Cisco, Arista, or Juniper, this cable provides a straightforward and dependable connection.

• QSFP28 connectors on both ends for direct high-speed links
• Compatible with HPE, Cisco, Arista, and Juniper networking devices
• Supports 100GBase direct attach standard for broad interoperability

Ideal uses and environments

The HPE 845406-B21 is well suited for data centers, server rooms, and enterprise networking environments where short-range, high-speed connections are required. Its flexible copper design fits neatly into dense rack setups, helping to maintain organized cabling without sacrificing performance. Network administrators upgrading infrastructure or deploying new equipment will find this cable a practical choice for maintaining low latency and high throughput in critical applications.