Capreo components are highly regarded in Japan, which is arguably the world’s top market for folding bikes. NOS Capeo cassettes sell for more than $100, so these Sunrace cassettes will be very welcome to the Japanese market.
I ran a Capreo cassette with a Dura Ace 7700 derailleur and XTR 9 speed shifters on my Moulton. This setup gave me a significant increase in the top end compared to the 11-28 Dura Ace cassette I am now running. My only complaint about the cassette was that it was quite heavy for its size, and it was fast-wearing.