Cisco QSFP-4SFP25G-CU1M – 1m 100G QSFP28 to 4×25G SFP28 Passive Copper Splitter Cable
Model Name : QSFP-4SFP25G-CU1M
Brand : Cisco
Key Features
- 100G QSFP28 to 4×25G SFP28 breakout
- Short 1m length for top-of-rack efficiency
- Passive copper DAC – zero power consumption
- Low latency & high signal integrity
- Durable and flexible jacket construction
- Compatible with Cisco 25G/100G switches and servers
- Ideal for data centers, cloud, hyperscale & enterprise deployments
30 Days Warranty
Condition : New
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- Description
- Specification
- Reviews
Cisco QSFP-4SFP25G-CU1M is a 1-meter passive copper splitter cable designed to convert a single 100G QSFP28 port into four 25G SFP28 interfaces.
This short-reach DAC is ideal for high-density server racks, where low-latency, low-power, and cost-effective connectivity is essential.
Its passive copper design ensures zero power usage, excellent EMI performance, and reliable data transmission.
Perfect for top-of-rack (ToR) connections, this cable is commonly used to link 100G switches with 25G servers, NICs, and compute nodes.
FAQ For Cisco QSFP-4SFP25G-CU1M
1. What does the QSFP-4SFP25G-CU1M cable do?
It breaks out a 100G QSFP28 port into four 25G SFP28 ports, enabling multiple device connections.
2. Is the cable active or passive?
It is a passive copper DAC, meaning no power is required.
3. What is the ideal use case for the 1m version?
Top-of-rack (ToR) connections where components are close together.
4. Is this cable compatible with non-Cisco devices?
Yes—if they support industry-standard QSFP28/SFP28 interfaces.
5. Can it connect servers directly to switches?
Absolutely. It is commonly used to link 25G servers/NICs to 100G switches.
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