3 ms·If you are plugged into a 4k monitor, you are probably reasonably close to a power outlet.by FootballMuse 12y agoIf you are plugged into a 4k monitor, you are probably reasonably close to a power outlet.lloeki 12y agoTheoretically, Thunderbolt is capable of being your power outlet.estel 12y agoYeah but if you're powering your 4K monitor from Thunderbolt, I doubt you'd get that 12 hour battery life either :D