Check the Amazon reviews, the benchmarks for Crystal are listed there. Something like seq 550 read/500 write.It's a large SSD that's inexpensive for its size. Better than a spinner for sure. Seems a few people have purchased these by now, I'm surprised no one here has benched one either by itself or alongside a Samsung/Crucial for comparison.
Anyway, check these out and I think you'll be pleasantly surprised:
https://www.nikktech.com/main/artic...tate-drives/7138-micron-1100-256gb-ssd-review
https://forums.anandtech.com/threads/mini-review-on-the-micron-1100-ssd.2536625/