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SFP-H25G-CU4M – 25GBase 4 Meter – Passive Copper Cable
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SFP-H25G-CU4M Description
SFP-H25G-CU4M is a Cisco 25GBASE-CR1 SFP28 passive direct-attach copper cable designed for 4-meter, high-speed interconnections between Cisco switches, routers, and servers supporting SFP28 ports. Recognized as “Cisco 25G DAC 4m” or “SFP28 4m Passive Copper Cable”, this model delivers 25Gbps data rates with exceptional reliability and cost efficiency. Ideal for extended rack-to-rack or cross-row connections, the cable offers simple plug-and-play installation, stable signal integrity, and full Cisco hardware compliance. Built for demanding enterprise, cloud, and data center environments, SFP-H25G-CU4M is a flexible solution for scaling high-density networks with minimal latency and industry-certified quality.
Applications Scenarios
Extended Rack-to-Rack Interconnects
Connects equipment between rows or racks in large-scale data centers, supporting flexible network layouts.
Manufacturing & Industrial Automation
Enables robust data connectivity for industrial servers, PLCs, and monitoring systems within automated facilities.
Enterprise Core Switch Aggregation
Provides backbone links between aggregation switches and high-capacity servers for efficient traffic consolidation.
Platform Support
The Cisco SFP-H25G-CU4M DAC cable is fully compatible with a wide range of Cisco switches and servers featuring SFP28 ports. Typical supported platforms include, but are not limited to:
Certifications & Compliance
Model comparison
|
Feature/Spec |
SFP-H25G-CU4M |
SFP-H25G-CU5M |
SFP-25G-AOC4M |
|---|---|---|---|
|
Type |
Passive DAC Cable |
Passive DAC Cable |
Active Optical Cable |
|
Data Rate |
25 Gbps |
25 Gbps |
25 Gbps |
|
Cable/Module Length |
4m |
5m |
4m |
|
Connector |
SFP28 to SFP28 |
SFP28 to SFP28 |
SFP28 to SFP28 |
|
Power Consumption |
1W (typical) |
1W (typical) |
1W (typical) |
|
Cable Type |
Copper |
Copper |
Optical Fiber |
|
Bail Latch Color |
Green |
Gray |
Green |
|
FEC Requirement |
RS-FEC required |
RS-FEC required |
RS-FEC required |
|
Operating Temperature |
0 to 70°C |
0 to 70°C |
0 to 70°C |
|
Weight |
Medium |
Higher |
Low |
|
Hot-swappable |
Yes |
Yes |
Yes |
|
Application Focus |
Extended reach |
Maximum copper reach |
EMI-sensitive, longer reach |
|
Platform Compatibility |
Cisco SFP28 Ports |
Cisco SFP28 Ports |
Cisco SFP28 Ports |
|
Typical Industry |
Data Center, Industry |
Data Center, HPC |
Cloud, Broadcast, HPC |
Installation & Usage Tips
- Hot-swappable Design: The SFP-H25G-CU4M is fully hot-swappable—insert or remove the cable without powering down your equipment.
- Plug and Play: No additional configuration or software required. Simply insert into compatible SFP28 ports.
- Proper Handling: Always hold the cable by the connectors and avoid excessive bending. Maintain a minimum bend radius of 30mm to ensure signal integrity.
- Port Cleaning: Ensure the SFP28 cages are free of dust and debris before installation.
- Lock Mechanism: Use the integrated pull-tab for secure installation and easy removal; do not force or twist the cable.
- Stacking Cables: Avoid tightly bundling or sharply bending cables to prevent signal loss or physical damage.
- Operating Conditions: Confirm that the cable is used within specified operating temperature (0 to 70°C) and humidity levels.
- Compatibility: For optimal performance, use Cisco certified cables with Cisco switches and servers, and refer to the latest compatibility matrix for your platform.
Specifications
| Parameter | Value |
|---|---|
| Product Model | SFP-H25G-CU4M |
| Description | 25GBASE-CR1 SFP28 Passive Copper Cable, 4 meters |
| Type | Direct-Attach Copper (DAC), Passive |
| Data Rate | 25 Gbps |
| Cable Length | 4 meters |
| Connector Type | SFP28 to SFP28 |
| Maximum Power Consumption | 1W |
| Bail Latch Color | Green |
| Operating Temperature Range | 0°C to 70°C (32°F to 158°F) |
| Storage Temperature Range | -40°C to 85°C (-40°F to 185°F) |
| Compliance | RoHS, SFF-8402, SFF-8472, IEEE 802.3by/cc |
| Platform Compatibility | Cisco SFP28 switch & server ports |
| Hot-swappable | Yes |
| Typical Applications | Extended rack-to-rack, aggregation, and industrial interconnects |
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Burn the city… with high speed data. Preem cables.
Reliable connection for our storage network. Very pleased.
4m passive is getting to the limit but these work great. Genuine Cisco quality.
Vendor is on our approved list now. Consistent quality.
Gig was smooth. Package secured. Eddies well spent.