TB32HD24K60 would be a great dual HDMI 4k60Hz solution for MacBookPro16.1 (16-inch, 2019) with Big Sur 11.5, but the Thunderbolt 3 adapter actually supports no 60Hz on all Samsung displays. Tested with Ultra High Speed HDMI cables 8K @ 60Hz on Samsung UN55HU7200F and UN55RU7300FXZA. Tried working closely with the patient and creative StarTech and Samsung debugging support teams to no avail. Apple's pair of USB-C multiport digital AV adapters work well at 60Hz with the same displays and cables, but StarTech caps 30Hz on the 7300, even when a single display is connected. It would be nice to know what chipset StarTech uses, but the support team didn't know. e.
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