Estimates for a worldwide collection (USA, EUR, JPN) typically land between 1.7 TB and 1.83 TB .
Depending on how the set is curated (regions, duplicates, and file types), the total storage requirements vary: 3ds Complete Rom Set Size
A collection of just the 1,547 digital titles available on the North American eShop before its closure is much smaller, totaling about 267 GB . Technical Factors Affecting Size Estimates for a worldwide collection (USA, EUR, JPN)