NOOBS 3.8.1 Preloaded Micro SD for Raspberry Pi 400, 4, 3B+, 3A+

For Example, if the Pi you initially used with the Micro SD was a Raspberry Pi 4 Model B and you take your Micro SD and place it in a Raspberry Pi 3 Model B, the board won't boot. In order to get it working on the Raspberry Pi 3, you would have to format and reinstall the OS.

Raspberry Pi OS Pre-installed Micro SD Card

Raspberry Pi - Pre-Loaded Micro SD Card – DAKboard, LLC

Ultra Raspberry Pi Preloaded (Raspberry Pi OS / Raspbian) MicroSD

Raspberry Pi™ - 16GB MicroSD NOOBS Card - COM-13945 - SparkFun

For Example, if the Pi you initially used with the Micro SD was a Raspberry Pi 4 Model B and you take your Micro SD and place it in a Raspberry Pi 3

NOOBS 3.8.1 Preloaded Micro SD for Raspberry Pi 400, 4, 3B+, 3A+, 3B, 2, Zero

STEADYGAMER - 32GB Raspberry Pi Preloaded (Noobs) SD

Micro SD - Pre-Loaded with NOOBS (Official Card & Adapter) — Pi Supply

Raspberry Pi 16GB Preloaded (NOOBS) SD Card …

Raspberry Pi 16GB Preloaded (Noobs) SD Card …

Raspberry Pi 16GB Preloaded (NOOBS) SD Card, Pre

For Example, if the Pi you initially used with the Micro SD was a Raspberry Pi 4 Model B and you take your Micro SD and place it in a Raspberry Pi 3

NOOBS 3.8.1 Preloaded Micro SD for Raspberry Pi 400, 4, 3B+, 3A+, 3B, 2, Zero