quartz
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Not sure I follow. 1080p @30fps you're looking at 3500-5000 kbps per stream (assume Rivian is less). That's 25000 kbps for 5 streams, being conservative. Any UHS3 or V30 card can handle that, and if you want extra overhead you can go for V60 or V90 class which supports 8K streaming. IMO SSD is way overkill for the application, while at the same time less durable when frequently exposed to heat and vibration. Not an expert, so please correct me if I'm wrong.As others have already said, the larger the drive the higher the TBW or total bytes written for the drive. The smaller the drive the more write cycles each block on the drive will experience and will fail in a shorter time than a larger drive. With Rivian recording 5 cameras it will likely make a difference. If you look at the write cycle specs for even the high endurance micro SD cards they are looking at only one video stream with relatively low bitrate.
Edit: I get your point about more volume = more write cycles, I just don't see 1TB+ as necessary for the application given the specs.
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