QSFP-4SFP25G-CU3M Cisco Compatible, 100G QSFP28 to 4xSFP25G Passive Breakout DAC Cable - 3m
Warranty: Lifetime
Quick answer: The QSFP-4SFP25G-CU3M Cisco-compatible cable is a 3-meter passive breakout DAC that splits one 100G QSFP28 port into four 25G SFP28 connections, for linking a switch to four servers or 25G ports in the same rack. It is coded to work in Cisco switches that call for QSFP-4SFP25G-CU3M. Resilient Tec sells it new, with a lifetime warranty and free US shipping from Knoxville, TN.
Cisco Compatible 100G QSFP28 to 4xSFP25G Passive Breakout DAC Cable - 3 Meters
This third-party 100G QSFP28 to 4x25G SFP28 Passive Breakout DAC cable is fully compatible with Cisco QSFP-4SFP25G-CU3M, delivering reliable 100GbE to 4x25GbE connectivity for short-range high-speed networking applications up to 3 meters. Ideal for enterprise networking, AI/HPC clusters, top-of-rack (ToR) switching, and hyperscale data centers requiring low-latency breakout connectivity.
Built to QSFP28 MSA standards, it features QSFP28 to 4xSFP28 connectivity and pre-programmed EEPROM compatibility for seamless deployment with Cisco networking platforms. Backed by our lifetime warranty and rigorous testing—enjoy significant savings versus genuine Cisco OEM cables while maintaining reliable, high-performance connectivity.
Key Features
- Massive Cost Savings: Premium compatible breakout DAC cables at a fraction of OEM pricing—ideal for scaling enterprise and AI networking environments affordably.
- Plug-and-Play Compatibility: Pre-programmed EEPROM enables seamless deployment with Cisco networking platforms.
- 100G to 4x25G Breakout Connectivity: Supports high-density breakout configurations for switches, servers, and storage environments.
- Low-Latency Passive Copper Design: Passive Twinax construction minimizes latency for high-performance computing and data center applications.
- 3-Meter Reach: Optimized for short-range intra-rack and inter-rack connections.
Compatibility
Designed for use with Cisco networking platforms including Cisco Catalyst and Nexus switches. Fully tested to ensure plug-and-play operation with no manual configuration required.
Specifications
- Part Number: QSFP-4SFP25G-CU3M
- Form Factor: QSFP28 to 4x SFP28
- Cable Type: Passive DAC (Direct Attach Copper)
- Data Rate: 100G (4x25G)
- Cable Length: 3 meters
- Connector: QSFP28 to 4x SFP28
- Compatibility: Cisco QSFP-4SFP25G-CU3M compatible
- Warranty: Lifetime
Frequently Asked Questions
Does the switch port need to be configured?
Yes. Set the QSFP28 port to 4 x 25G breakout mode in the switch configuration; each SFP28 leg then appears as its own 25G interface.
Will the SFP28 ends work in 10G SFP+ ports?
Usually not. The four legs run at 25G, so the ports on that end need to support 25G (SFP28). For 10G servers, use a 40G QSFP+ to 4 x 10G SFP+ breakout instead.
Compatible cable or genuine Cisco: what is the difference?
This is a new third-party cable programmed (coded) to be recognized by Cisco equipment that calls for this part number, at a fraction of the Cisco-branded price. Choose the genuine Cisco part only if your support contract or internal policy requires Cisco-branded parts.
What warranty and shipping come with it?
Resilient Tec's lifetime warranty. US standard shipping is free with no minimum, and orders typically arrive in 3 to 5 days.
You Might Also Need
QSFP-4SFP25G-CU1M Cisco Compatible, 100G QSFP28 to 4xSFP28 Passive Breakout DAC Cable
QSFP-100G-CU1M Cisco Compatible, 100G QSFP28 Passive DAC Cable
SFP-H25GB-CU1M Cisco Compatible, 25G SFP28 Passive DAC Cable
All DAC cables
Quick answer: The QSFP-4SFP25G-CU3M Cisco-compatible cable is a 3-meter passive breakout DAC that splits one 100G QSFP28 port into four 25G SFP28 connections, for linking a switch to four servers or 25G ports in the same rack. It is coded to work in Cisco switches that call for QSFP-4SFP25G-CU3M. Resilient Tec sells it new, with a lifetime warranty and free US shipping from Knoxville, TN.
Cisco Compatible 100G QSFP28 to 4xSFP25G Passive Breakout DAC Cable - 3 Meters
This third-party 100G QSFP28 to 4x25G SFP28 Passive Breakout DAC cable is fully compatible with Cisco QSFP-4SFP25G-CU3M, delivering reliable 100GbE to 4x25GbE connectivity for short-range high-speed networking applications up to 3 meters. Ideal for enterprise networking, AI/HPC clusters, top-of-rack (ToR) switching, and hyperscale data centers requiring low-latency breakout connectivity.
Built to QSFP28 MSA standards, it features QSFP28 to 4xSFP28 connectivity and pre-programmed EEPROM compatibility for seamless deployment with Cisco networking platforms. Backed by our lifetime warranty and rigorous testing—enjoy significant savings versus genuine Cisco OEM cables while maintaining reliable, high-performance connectivity.
Key Features
- Massive Cost Savings: Premium compatible breakout DAC cables at a fraction of OEM pricing—ideal for scaling enterprise and AI networking environments affordably.
- Plug-and-Play Compatibility: Pre-programmed EEPROM enables seamless deployment with Cisco networking platforms.
- 100G to 4x25G Breakout Connectivity: Supports high-density breakout configurations for switches, servers, and storage environments.
- Low-Latency Passive Copper Design: Passive Twinax construction minimizes latency for high-performance computing and data center applications.
- 3-Meter Reach: Optimized for short-range intra-rack and inter-rack connections.
Compatibility
Designed for use with Cisco networking platforms including Cisco Catalyst and Nexus switches. Fully tested to ensure plug-and-play operation with no manual configuration required.
Specifications
- Part Number: QSFP-4SFP25G-CU3M
- Form Factor: QSFP28 to 4x SFP28
- Cable Type: Passive DAC (Direct Attach Copper)
- Data Rate: 100G (4x25G)
- Cable Length: 3 meters
- Connector: QSFP28 to 4x SFP28
- Compatibility: Cisco QSFP-4SFP25G-CU3M compatible
- Warranty: Lifetime
Frequently Asked Questions
Does the switch port need to be configured?
Yes. Set the QSFP28 port to 4 x 25G breakout mode in the switch configuration; each SFP28 leg then appears as its own 25G interface.
Will the SFP28 ends work in 10G SFP+ ports?
Usually not. The four legs run at 25G, so the ports on that end need to support 25G (SFP28). For 10G servers, use a 40G QSFP+ to 4 x 10G SFP+ breakout instead.
Compatible cable or genuine Cisco: what is the difference?
This is a new third-party cable programmed (coded) to be recognized by Cisco equipment that calls for this part number, at a fraction of the Cisco-branded price. Choose the genuine Cisco part only if your support contract or internal policy requires Cisco-branded parts.
What warranty and shipping come with it?
Resilient Tec's lifetime warranty. US standard shipping is free with no minimum, and orders typically arrive in 3 to 5 days.
You Might Also Need
QSFP-4SFP25G-CU1M Cisco Compatible, 100G QSFP28 to 4xSFP28 Passive Breakout DAC Cable
QSFP-100G-CU1M Cisco Compatible, 100G QSFP28 Passive DAC Cable
SFP-H25GB-CU1M Cisco Compatible, 25G SFP28 Passive DAC Cable
All DAC cables