Which QR comes with the CSL DD 5Nm

The current version of the CSL DD 5Nm (July 2024) comes with the QR1 Base-Side.

You can always find this information on the product page within the Fanatec Webshop.
The package content is listed on the bottom of the page: 

"What's included:

CSL DD wheel base
QR1 Base-Side (Type-C) preinstalled
90W power supply (regional)*
4x T-nuts for rail mount system
USB cable (Type-C to Type-A)
Quick Guide"