USB4 / Thunderbolt Bandwidth Calculator

Daisy-chained displays and drives all share one bandwidth pool, and nothing tells you when you've added one too many. Pick your port standard, add your chained devices, and see exactly how much bandwidth is left. Nothing uploaded.

USB4 & Thunderbolt presets ? Daisy-chain modeling Bandwidth budget bar Overload warning

Bandwidth Budget

Used

Gbps

Port capacity

Gbps

Remaining headroom

Gbps

Note

Bandwidth figures are approximate, based on commonly cited display and drive throughput requirements. Real-world performance also depends on cable quality, hub overhead, and whether devices share a single chain or separate ports.