While there are various sources online, it's crucial to opt for legitimate channels to download or purchase Cubase 5:
Steinberg offers for ~$99 (often on sale). It includes: Cubase 5 Mac Dmg Torrent
Which of those would you like?
: While later updates like version 5.1.1 added 64-bit support for Windows, its compatibility with modern 64-bit-only macOS versions (macOS Catalina 10.15 and later) is virtually non-existent without complex virtualization. While there are various sources online, it's crucial