I'm happy to answer any questions around this! We've been working on this since update since we launched the product last year, so we're excited to be able to share it today.
I see there are only DDR4 options. Presumably if you bring your own memory, that also has to be DDR4.
Why no DDR5?
When we started developing this product last year, we looked at price trends and performance data on DDR4 vs DDR5 and made the bet that DDR5 would have both price and availability issues in 2022. That has turned out to be the case, with DDR5 SO-DIMMs typically going for 50-70% over the equivalent DDR4 capacity, without delivering performance improvements to justify that premium. This is something that will improve in the future, and we'll continue to track this for future products.