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QLC drives like the Samsung QVO drives don't have particularly high write endurance nor are they particularly fast (hidden by an SLC or DRAM cache). Any sort of parity RAID configuration will chew through them in fairly short order.
A better deal would be to buy lightly used retired enterprise drives if you're intending to RAID them. They have much greater endurance, more sustained throughput, power loss protection (capacitors to provide power to finish out acknowledged writes in the even of a power outage) , and are suited for use RAID array. For example, I've bought a ton of 1.6tb Intel DC S3610s for anywhere from $130 to $210 each. Some were Intel retail drives, some were HP OEMs. All had 99% to 100% of life left according to the respective Intel or HP utility.
aieronimo said:dempson said:The listed models have one feature in common: all have a Skylake or newer processor.
Skylake adds hardware encode/decode support for HEVC, so this might just be a case of the Sidecar feature being implemented with HEVC rather than H.264 to reduce bandwidth requirements or allow a higher frame rate. Older Mac models would have to do HEVC encode in software, so enabling the workaround might impose a significant CPU performance load when the display is rapidly changing.