Thinkpad: Caution when buying an SSD.
If I need an external drive, I build it from an NVMe and 3rd party enclosure. I also have a few SSD 2.5 and UGreen enclosures, which I put together myself. It's really easy.
I ran my ThinkPad x100e for a few years with a microSD to sata adapter and it worked just fine. Then, I upgraded to a true ssd.