The Schneider Electric HMIYP6RUSW1021CTO is a USB stick carrying the recovery image for Harmony P6 advanced and standard HMIs running Windows 10 2021. It's a maintenance accessory — the sort of thing you want on the shelf before a corrupted runtime forces a line stop. No need to rebuild the image from scratch; this is the factory recovery payload on a single USB stick.
What it fits and where it lives
This is part of the Harmony P6 range — Schneider's panel-mount PC/HMI line. The stick itself is a standard USB-A form factor; no special mounting, no DIN-rail clip. You plug it into the HMI's USB port during recovery. Storage temperature spans -20 to 60 °C (-4 to 140 °F), so it can sit in a tool bag or panel enclosure without issue. Operating range is 0 to 55 °C (32 to 131 °F), which covers most cabinet environments.