BlueLAN HPE R9F91A Compatible SFP28 Direct Attach Cable (DAC) - Passive 25 Gigabit Twinaxial Copper, 1 Meter

The BlueLAN HPE R9F91A compatible Direct Attach Cable (DAC) is a high-performance, passive 25 Gigabit Twinaxial Copper cable designed for reliable, low-latency connections in data centers and enterprise networks. With SFP28 connectors on both ends, this cable provides a cost-effective solution for short-range interconnects between servers, switches, and storage devices within racks or across adjacent racks.

Advantages

This passive DAC cable offers exceptional signal integrity and low power consumption, eliminating the need for external power sources. Its twinaxial copper construction ensures durability and flexibility, making it ideal for high-density environments. The cable is fully compatible with HPE Aruba networking equipment and meets industry standards for 25GBASE-CR operation.

Suitable for

• Connecting servers to top-of-rack switches
• Interconnecting switches within a data center
• High-speed storage area network (SAN) links
• Rack-to-rack and rack-to-server cabling

Key specifications

• Product Type: Direct Attach Cable (DAC)
• Cable Type: Twinaxial Copper
• Data Rate: 25 Gbps
• Protocol: 25GBASE-CR
• Connector A: SFP28 Male
• Connector B: SFP28 Male
• Cable Length: 1 Meter (3.3 feet)
• Active/Passive: Passive
• Impedance: 100 Ohm
• Voltage: 3.3V
• Power Consumption: Low (Passive)
• Jacket Material: PVC
• Operating Temperature: 0°C to 70°C
• Standards Compliance: SFF-8402 (SFP28 MSA), IEEE 802.3by (25GbE)
• Hot-Swappable: Yes

Recommendations

For optimal performance, use this cable with compatible HPE Aruba switches and servers supporting SFP28 interfaces. Ensure proper cable management to maintain airflow and avoid sharp bends. This passive DAC is ideal for short-distance, high-speed connections where low latency and low power are critical.