Suitable for R730,R630,R720, R620, R520, R420, R810, R710, R610 ETC. They are a bit higher in price than the fake chinese ones, but these are genuine caddies from a dell server and fits as designed, it's ideal if you have 1TB SSD that you want to resel, a properly marked caddy can fetch as much as 30% more for the appropriate drives.
eBay