Cisco QSFP to 4x SFP-10G Passive Copper Breakout Cable 3m

• Intra-rack server-to-switch 10G connectivity
• Adjacent-rack leaf-spine network connections
• Data center server aggregation layers
• Virtualization clusters (VMware, Hyper-V, KVM)
• High-density compute node connectivity
• Storage access network interconnects
• Enterprise rack-level network distribution
• Cloud infrastructure scaling environments
• Colocation data center deployments
• Network modernization from 40G backbone to 10G access layer

• Converts one 40G QSFP port into four independent 10G SFP+ connections
• Passive copper design ensures ultra-low latency performance
• 3-meter optimized reach for rack and adjacent rack connectivity
• Reduces need for multiple standalone 10G transceivers
• Ideal for high-density data center environments
• Plug-and-play installation with no configuration required
• Cost-effective alternative to optical breakout solutions
• Supports scalable leaf-spine network architectures
• Minimizes power consumption compared to active cables
• Simplifies structured cabling in enterprise data centers
• Improves port utilization efficiency on QSFP switches
• Designed for short-range high-performance interconnects
• Stable and reliable copper-based signal transmission

• Brand: Cisco
• Product Type: QSFP to 4x SFP-10G Passive Breakout Cable
• Model: CU3M
• Interface A: QSFP (40G)
• Interface B: 4 × SFP-10G
• Cable Type: Passive Copper (DAC)
• Length: 3 meters
• Data Rate: 40G to 4 × 10G
• Latency: Ultra-low (passive design)
• Application: Intra-rack / adjacent-rack breakout
• Compatibility: Cisco QSFP-enabled switching platforms
  

WHY CHOOSE THIS PRODUCT?

• Organizations choose this passive breakout cable when they need a simple, low-cost, and ultra-low-latency method of distributing 10G connectivity from a single 40G QSFP port. It eliminates the need for multiple individual 10G transceivers while maximizing port efficiency.
• Compared to active or optical solutions, this passive variant reduces power draw, lowers total cost of ownership, and simplifies cabling design in dense rack environments.
• For procurement and infrastructure teams, it provides a highly reliable and budget-friendly way to scale server connectivity while preserving existing 40G switch investments and enabling gradual network expansion.