40G QSFP+ DAC Cable - High-Speed Copper Cable from China Suppliers & Factory for Data Center Connectivity

QSFP+ to QSFP+ cables connect two 40G ports directly for high-speed data transmission. QSFP+ to 4 SFP+ breakout cables split a single 40G channel into four independent 10G channels, allowing you to connect a 40G switch port to up to four 10G SFP+ enabled devices.

These cables are passive Direct Attach Copper (DAC) cables. Passive DAC cables do not contain active electronics to amplify signals, making them highly cost-effective and energy-efficient for short-distance connections (typically up to 7 meters).

AWG (American Wire Gauge) measures the thickness of the copper wire inside the cable. A lower AWG number indicates a thicker wire. Thicker wires (like 24AWG) have less signal loss and are used for longer cable lengths (5M to 7M), while thinner wires (like 30AWG) are more flexible and used for shorter lengths (1M to 3M).

All models listed in our ordering information support a standard commercial operating temperature range of 0°C to 70°C (32°F to 158°F), making them suitable for standard enterprise data centers and network closets.

Yes, these QSFP+ and SFP+ copper cables support hot-plugging. You can insert or remove the cables without powering down the network switches or routers, ensuring zero disruption to your active network services.