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Cable calculators

HDMI payload estimates and USB-C power ceilings. Not full cable certification or video compatibility.

Cable tools

HDMI Bandwidth Calculator

Estimate whether a video mode fits 18 Gbps-class or 48 Gbps-class HDMI.

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Cable tools

USB-C Power Cable Checker

Check charger and cable watt ratings against a device’s power need.

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Cable calculators | CableFit