idVendor: 0x047D iManufacturer: idProduct: 0x8203 iProduct: VeriMark NFC+ USB-C Security Key bcdDevice: 91.24 (firmware release?) bLength: 9 bDescriptorType: 4 bInterfaceNumber: 1 bAlternateSetting: 0 bNumEndpoints: 3 bulk-IN, bulk-OUT and Interrupt-IN bInterfaceClass: 0x0B [Chip Card Interface Device Class (CCID)] bInterfaceSubClass: 0 bInterfaceProtocol: 0 bulk transfer, optional interrupt-IN (CCID) Can't get iInterface string: LIBUSB_ERROR_INVALID_PARAM CCID Class Descriptor bLength: 0x36 bDescriptorType: 0x21 bcdCCID: 1.10 bMaxSlotIndex: 0x00 bVoltageSupport: 0x02 3.0V dwProtocols: 0x0000 0x0003 T=0 T=1 dwDefaultClock: 4.000 MHz dwMaximumClock: 4.000 MHz bNumClockSupported: 0 (will use whatever is returned) IFD does not support GET CLOCK FREQUENCIES request: LIBUSB_ERROR_PIPE dwDataRate: 10752 bps dwMaxDataRate: 800000 bps bNumDataRatesSupported: 0 (will use whatever is returned) IFD does not support GET_DATA_RATES request: LIBUSB_ERROR_PIPE dwMaxIFSD: 254 dwSynchProtocols: 0x00000000 dwMechanical: 0x00000000 No special characteristics dwFeatures: 0x000103FE ....02 Automatic parameter configuration based on ATR data ....04 Automatic activation of ICC on inserting ....08 Automatic ICC voltage selection ....10 Automatic ICC clock frequency change according to parameters ....20 Automatic baud rate change according to frequency and Fi, Di params ....40 Automatic parameters negotiation made by the CCID ....80 Automatic PPS made by the CCID ..01.. CCID can set ICC in clock stop mode ..02.. NAD value other than 00 accepted (T=1) 01.... TPDU level exchange dwMaxCCIDMessageLength: 271 bytes bClassGetResponse: 0x00 bClassEnvelope: 0x00 wLcdLayout: 0x0000 bPINSupport: 0x00 bMaxCCIDBusySlots: 1