$ smartctl -x /dev/sdb smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.5.9-200.fc38.x86_64] (local build) Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org /dev/sdb: Unknown USB bridge [0x2174:0x2100 (0x100)] Please specify device type with the -d option. Use smartctl -h to get a usage summary