lsusb - dg
Bus 004 Device 004: ID 0ac8:c450 Z-Star Microelectronics Corp.
Bus 004 Device 003: ID 17ef:6019 Lenovo
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 17ef:602d Lenovo
Bus 001 Device 002: ID 0951:1666 Kingston Technology
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub