Will this setup charge at the rate I need?
Find the declared bottleneck across device demand, charger output, cable power, PPS, and proprietary protocols.
Open Charge Check →Compatibility, without the guesswork
One plug. Many hidden limits.
Check the whole USB-C chain—device, charger, cable, port, dock, and display—before you buy, connect, or replace anything.
5 toolsDifferent decisions, not renamed calculators
0 accountsYour inputs stay in your browser
Clear limitsKnown facts separated from unknowns
Start at the symptom
What are you trying to solve?
USB-C is a connector, not a capability guarantee. Choose the decision you need to make.
What can this USB-C cable plausibly do?
Turn wattage, data-rate, length, and marking claims into useful capability checks and verification steps.
Decode a cable →Will this resolution and refresh rate fit?
Estimate display payload for one or more monitors and compare it with an available DP link.
Plan a display link →Can one charger cover all my devices?
Model total demand, per-port ceilings, and shared-power pressure before buying a multi-port charger.
Plan port power →Why did charging or video stop working?
Build a shortest-first isolation plan for slow charging, no power, no video, dual-display failures, and dropouts.
Build a test plan →Understand the weakest-link rule
See why a 100 W label, USB-C shape, or “8K” claim never describes the entire connection.
Read the chain guide →How every result works
No false certainty
Public specifications can screen a setup. They cannot reveal every vendor decision or damaged component.
Declare
Enter what the device, cable, charger, dock, or display claims to support.
Find the bottleneck
We compare the chain and show the first capability that can limit the target.
Verify the unknowns
Every result tells you what needs a manual, certified marking, hardware test, or direct connection test.