Macs equipped with an M1 Pro/Max, M2 Pro/Max, M3/Pro/Max, M4/Pro/Max, or M5/Pro/Max chip running macOS 26 or later support up to 8K 30Hz or 4K 144Hz video output. Macs running maOS 15 or below, standard "Base" M1 or M2 chips and the MacBook Neo are limited to a maximum resolution of 4K 60Hz.
How Apple Silicon Chips and macOS Versions Affect Video Performance
The ability to output 8K 30Hz or 4K 144Hz via the USBC-10IN1E depends on both the hardware capabilities of the Apple Silicon chip and the version of macOS installed. The standard M1 and M2 chips, along with the MacBook Neo, do not support these higher display modes, capping them at 4K 60Hz regardless of the software version.
Furthermore, macOS 26 is the first version to introduce system-level support for these high-performance display modes through USB-C to HDMI adapters. If your Mac is running macOS 15 or earlier, it will be limited to 4K 60Hz regardless of the processor it uses.
Applicable To
USBC-10IN1E