Cisco SFP-H25G-CU1M=

Overview

The Cisco SFP-H25G-CU1M= is a 1-meter direct attach copper cable designed to establish a reliable 25-Gigabit connection between devices with SFP28 ports. It provides 25GBase-CR1 connectivity using a twinaxial design, delivering high-speed data transfer without the need for optical transceivers or fiber optics. This cable is ideal for short-reach links within racks or between adjacent racks, making it a practical choice for data centers and enterprise network environments.

Its compact length helps reduce cable clutter and maintain airflow in dense rack setups, while compliance with IEEE 802.3by and SFF-8402 standards ensures compatibility and consistent performance under heavy network loads.

Key features

• Direct attach copper cable that provides 25GBase-CR1 connectivity for high-speed data transmission
• Twinaxial construction minimizes latency and signal loss, supporting stable and efficient network performance
• 1-meter length is optimized for intra-rack or adjacent-rack connections, simplifying cable management
• Equipped with two SFP28 connectors for straightforward plug-and-play installation without additional hardware
• Meets IEEE 802.3by and SFF-8402 standards to ensure seamless interoperability with compliant devices
• Durable black jacket blends into existing cabling and protects the cable in demanding environments
• One-year warranty offers peace of mind during deployment and operation

Key specs

• Data rate: 25 Gigabits per second
• Cable length: 1 meter (3.3 feet)
• Connector type: SFP28 on both ends
• Cable type: Twinaxial direct attach copper
• Standards compliance: IEEE 802.3by, SFF-8402
• Color: Black jacket

Connectivity and compatibility

This cable is designed to connect devices equipped with SFP28 ports, such as top-of-rack switches, leaf switches, servers, and storage appliances. Its adherence to industry standards ensures it works smoothly with a wide range of Cisco and third-party networking equipment that supports 25GBase-CR1 links. The direct attach copper design eliminates the need for transceivers, reducing both cost and complexity in short-distance network setups.

Ideal uses and environments

The Cisco SFP-H25G-CU1M= fits well in data centers and enterprise wiring closets where high-bandwidth traffic must remain local. It is particularly useful for stacking switches, connecting servers to network fabrics, or linking storage devices within racks. Its short length and robust construction make it a strong choice for environments that require efficient cable management and reliable, low-latency connections over short distances.

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