Name: SFP-50G-CU4M Cisco 4M 25/50GBASE-CU SFP56 Twinax Copper Cable
Brand: Cisco
SKU: SFP-50G-CU4M
Price: 160.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The SFP-50G-CU4M Cisco 4M 25/50GBASE-CU SFP56 Cable serves as a direct attach twinax copper solution for high-speed networking within data centers. It fits into SFP56 ports to provide short distance connectivity ideal for linking servers and switches. This cable strikes a balance between performance and simplicity, making it a common choice where optical cables may be unnecessary or less efficient.

General Information
Brand	Cisco
Part Number	SFP-50G-CU4M

Technical Information
Data Rate	25Gbps,50Gbps
Cable Length	4 m
Compatibility	Cisco SFP56 ports; compatible with 25G/50G-capable Cisco Nexus and Catalyst switches and routers
Product Category	Cables - Direct Attach Copper

Physical Characteristics
Form Factor	SFP56
Weight	5.00
Condition	Refurbished

Product Description
The SFP-50G-CU4M is a 4-meter twinax copper cable designed to provide high-speed connectivity in network environments. It supports 25G and 50G Ethernet data rates, making it suitable for demanding data center and server-to-switch links. Often found in enterprise and cloud data centers, this cable is built for short-range connections where reliability and low latency are critical. Network engineers and IT professionals use this cable to ensure efficient data transfer without the need for optical transceivers. Key Features Offers direct attach cable solution for 25G and 50G SFP56 ports Delivers stable, low-latency connections ideal for server racks Compatible with Cisco switches and routers supporting SFP56 Reduces power consumption compared to active optical cables Maintains signal integrity over 4 meters of copper cabling This cable is typically deployed within data centers to link servers, storage, and network switches. It plays a key role in maintaining fast, reliable connections in dense rack environments without the complexity of fiber optics. Its straightforward plug-and-play use helps simplify network setups while keeping costs and power usage down in practical, real-world applications.

Use Cases
The SFP-50G-CU4M Cisco 4-meter twinax copper cable is primarily used in high-performance data center environments where short-reach connections between servers and switches are required. It benefits IT teams managing dense rack deployments and virtualization platforms needing low latency and power-efficient interconnects. How It's Used: Connecting top-of-rack switches to storage arrays in enterprise data centers to optimize throughput and reduce cabling complexity. Linking server nodes within hyper-converged infrastructure clusters that demand high bandwidth and minimal latency. Interfacing network equipment in colocation facilities where robust, plug-and-play copper solutions simplify maintenance. Facilitating communication between edge computing devices in distributed environments with constrained space and power limits. Supporting small to medium business (SMB) high-speed network backbones requiring cost-effective and reliable short-range connectivity. This cable supports operational efficiency by providing a streamlined physical layer connection that minimizes latency and power use. Its compatibility with existing Cisco hardware allows network architects to scale infrastructure with consistent performance across various high-density deployments.

SFP-50G-CU4M Cisco 4M 25/50GBASE-CU SFP56 Twinax Copper Cable

Product Overview

General Information

Technical Information

Physical Characteristics

Product Description

Use Cases