Cisco QSFP-4SFP10G-CU4M 40G QSFP+ to 4x10G SFP+ Breakout DAC Cable 4M – 5 Star Refurb
Condition: 5 Star Certified Refurbished. Hardware Honcho's highest refurbishment tier — professionally inspected, tested, and restored to like-new condition. Cosmetically excellent with no significant wear. Fully functional and ready to deploy.
Product Overview
The Cisco QSFP-4SFP10G-CU4M is a 40GBASE-CR4 passive direct-attach copper (DAC) breakout cable that connects a single 40G QSFP+ port on one end to four 10G SFP+ ports on the other — enabling cost-effective 40G to 4x10G breakout connectivity between Cisco switches, routers, and servers without the need for optical transceivers. At 4 meters in length, this passive twinax cable is ideal for top-of-rack (ToR) to end-of-row (EoR) connections and intra-rack switch-to-switch or switch-to-server deployments within the same rack or adjacent racks.
Fully Cisco-coded and compliant with QSFP+ MSA standard SFF-8436 and SFP+ MSA standard SFF-8432, the QSFP-4SFP10G-CU4M is plug-and-play compatible with Cisco Nexus, Catalyst, ASR, and ISR platforms supporting 40G QSFP+ breakout functionality. Passive design means zero power consumption beyond the host device.
- Model: QSFP-4SFP10G-CU4M
- Cable Type: 40GBASE-CR4 Passive Direct-Attach Copper (DAC) Breakout
- One End: 1x 40G QSFP+ connector
- Other End: 4x 10G SFP+ connectors
- Speed: 40G (QSFP+ end) → 4x 10G (SFP+ end)
- Length: 4 meters (13.1 ft)
- Cable Type: Passive twinax copper
- Power Consumption: 0W (passive — no power required)
- Compliance: QSFP+ MSA SFF-8436, SFP+ MSA SFF-8432
- Compatible Platforms: Cisco Nexus 3000/5000/6000/7000/9000 Series, Catalyst 4500/6500, ASR 9000, and other Cisco platforms with 40G QSFP+ breakout support
- Ideal for: Top-of-rack breakout, intra-rack switch-to-switch/server connectivity, 40G to 4x10G migration, data center cabling
Physical Specifications
- Length: 4 meters (13.1 ft)
- Cable: Passive twinax copper
- Connector (End A): QSFP+ (40G)
- Connector (End B): 4x SFP+ (10G each)
- Operating Temperature: 32–158°F (0–70°C)
Included Accessories
- Cisco QSFP-4SFP10G-CU4M DAC breakout cable (1x)
Important Notes
- Passive cable only — no active components. Maximum reach is 4 meters; for longer distances consider active DAC or AOC variants.
- Compatible with Cisco platforms supporting 40G QSFP+ breakout mode — verify breakout support on your specific platform and NX-OS/IOS version before purchasing.
- Not compatible with 100G QSFP28 ports — this cable uses QSFP+ (40G) connectors only.
Hardware Honcho 5 Star Certified Refurbished Assurance
- ⭐⭐⭐⭐⭐ Hardware Honcho's highest refurbishment tier — like-new condition
- Professionally inspected and tested to full working condition
- Cosmetically excellent — no significant wear or damage
- Verified authentic Cisco hardware
- Carefully packaged for secure shipment
- Fast shipping with professional handling
The Cisco QSFP-4SFP10G-CU4M delivers reliable 40G to 4x10G passive breakout connectivity in a plug-and-play 4-meter DAC cable — an essential accessory for cost-effective intra-rack data center cabling and 10G migration deployments.
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