“Works very well (I'm using a Crucial MX SSD), and it's certainly true that some other types of adaptor aren't fully compatible with the Pi4/400. These are excellent, and I can recommend them.”
“Great for attaching an SSD to a host PC to upload a Raspberry Pi OS image, recognised by Raspberry Pi Imager with no problems.
Works very nicely to allow booting my RPi 3B+ from an SSD.”