It's half USB Key, half temperature-humidity sensor... it's the Adafruit SHT41 Trinkey. We wanted to make it super-easy to add one of our most popular combination environmental sensors to any computer with a USB A port. https://elecena.pl/product/25617317/adafruit-sht41-trinkey-usb-temperature-and-humidity-sensor 2024-03-21 https://elecena.pl/product/25617317/adafruit-sht41-trinkey-usb-temperature-and-humidity-sensor 2024-04-10