Planet cavo in rame Direct Attach 40G QSFP+ su 4x 10G SFP+ 5m - cavo - 5 m

For high-density 40G Ethernet and InfiniBand fabrics, this passive direct attach copper breakout cable splits a single QSFP+ port into four independent 10G SFP+ links—without the power draw, latency, or cost of optical transceivers. At 5 metres, it reaches across adjacent racks in data centres and HPC clusters, delivering a dependable 40 Gbps aggregate path that plug-and-play simplicity makes effortless to deploy.

Highlights

• 1× QSFP+ to 4× SFP+ breakout configuration for 40G-to-10G fan-out
• Passive copper design: under 0.5 W total power consumption, no external power needed
• Aggregate 40 Gbps bandwidth (4× 10 Gbps lanes) with 100 Ohm differential impedance
• Compliant with SFF-8436, SFF-8431, and IEEE 802.3ba 40GBASE-CR4
• Hot-swappable connectors for zero-downtime maintenance
• 5 m length ideal for top-of-rack to adjacent rack or row-end connectivity

In daily use

Install it in seconds: plug the QSFP+ end into a 40G switch or NIC, then connect the four SFP+ ends to 10G servers, storage, or uplinks. Because it is passive, there is no firmware to manage and no active electronics to fail—just a robust copper link that maintains signal integrity across the full 5 m span. The cable operates reliably from 0°C to 70°C, making it suitable for both air-conditioned and warm-aisle environments.

Full specifications

• Cable type: Direct Attach Copper (DAC), passive
• Connector A: 1× QSFP+ (SFF-8436)
• Connector B: 4× SFP+ (SFF-8431)
• Data rate: 40 Gbps aggregate (4× 10 Gbps lanes)
• Length: 5 m
• Material: Copper
• Impedance: 100 Ohm
• Power consumption: < 0.5 W
• Protocol support: Ethernet, InfiniBand
• Standards: IEEE 802.3ba (40GBASE-CR4), SFF-8436, SFF-8431
• Operating temperature: 0°C to 70°C
• Storage temperature: -40°C to 85°C
• Applications: Data centre, HPC, enterprise networking

Final note

A straightforward, energy-efficient way to bridge 40G and 10G infrastructure—no optics, no configuration, just reliable copper connectivity.