The smallest NFC reader in the world, able to read any NFC card. Equipped with a USB-C port and compliant with the MIL-STD-810 standard. Physical characteristics Dimensions: 22.4 x 15.7 x 19.3mm Weight: 5.67 grams Indicators: LEDs Power supply: via USB Technical features OS Compatibility: Windows XP®, 7®, 8®, 10® and Linux U