With a new and easy-to-use expansion board, the Raspberry Pi 5 now not only has the option of installing an NPU for the acceleration of AI applications, but also an M.2 2280 slot for SSDs.https://www.notebookcheck.net/Ai-Bundle-Expansion-board-allows-for-the-addition-of-an-SSD-and-an-NPU-to-the-Raspberry-Pi-5.871234.0.html
It's available for a long time already.