+-o USB3 Gen2 Hub@03200000  <class IOUSBHostDevice, id 0x100000a96, registered, matched, active, busy 0 (18069 ms), retain 26>
    | |   |       +-o AppleUSB30Hub@03200000  <class AppleUSB30Hub, id 0x100000a9a, registered, matched, active, busy 0 (18064 ms), retain 15>
    | |   |       | +-o AppleUSB30HubPort@03210000  <class AppleUSB30HubPort, id 0x100000a9d, registered, matched, active, busy 0 (18044 ms), retain 17>
    | |   |       | | +-o My Book 25ED@03210000  <class IOUSBHostDevice, id 0x100000ae8, registered, matched, active, busy 0 (18044 ms), retain 28>
    | |   |       | |   +-o AppleUSBHostCompositeDevice  <class AppleUSBHostCompositeDevice, id 0x100000aec, !registered, !matched, active, busy 0, retain 4>
    | |   |       | |   +-o IOUSBHostInterface@0  <class IOUSBHostInterface, id 0x100000aed, registered, matched, active, busy 0 (18002 ms), retain 11>
    | |   |       | |     +-o IOUSBMassStorageInterfaceNub  <class IOUSBMassStorageInterfaceNub, id 0x100000aee, registered, matched, active, busy 0 (18000 ms), retain 10>
    | |   |       | |       +-o IOUSBMassStorageDriverNub  <class IOUSBMassStorageDriverNub, id 0x100000af1, registered, matched, active, busy 0 (18000 ms), retain 13>
    | |   |       | |         +-o IOUSBMassStorageDriver  <class IOUSBMassStorageDriver, id 0x100000af3, !registered, !matched, active, busy 0 (17999 ms), retain 12>
    | |   |       | |           +-o IOSCSILogicalUnitNub@0  <class IOSCSILogicalUnitNub, id 0x100000af5, registered, matched, active, busy 0 (17897 ms), retain 8>
    | |   |       | |           | +-o IOSCSIPeripheralDeviceType00  <class IOSCSIPeripheralDeviceType00, id 0x100000af8, !registered, !matched, active, busy 0 (163 ms), retain 10>
    | |   |       | |           |   +-o IOBlockStorageServices  <class IOBlockStorageServices, id 0x100000de3, registered, matched, active, busy 0 (163 ms), retain 7>
    | |   |       | |           |     +-o IOBlockStorageDriver  <class IOBlockStorageDriver, id 0x100000de4, registered, matched, active, busy 0 (162 ms), retain 9>
    | |   |       | |           |       +-o WD My Book 25ED Media  <class IOMedia, id 0x100000e0b, registered, matched, active, busy 0 (161 ms), retain 12>
    | |   |       | |           |         +-o IOMediaBSDClient  <class IOMediaBSDClient, id 0x100000e0c, registered, matched, active, busy 0 (0 ms), retain 6>
    | |   |       | |           |         +-o IOGUIDPartitionScheme  <class IOGUIDPartitionScheme, id 0x100000e0e, !registered, !matched, active, busy 0 (135 ms), retain 6>
    | |   |       | |           |           +-o My Book@1  <class IOMedia, id 0x100000e12, registered, matched, active, busy 0 (135 ms), retain 12>
    | |   |       | |           |             +-o IOMediaBSDClient  <class IOMediaBSDClient, id 0x100000e13, registered, matched, active, busy 0 (0 ms), retain 6>
    | |   |       | |           |             +-o AppleAPFSContainerScheme  <class AppleAPFSContainerScheme, id 0x100000e14, !registered, !matched, active, busy 0 (132 ms), retain 7>
    | |   |       | |           |               +-o AppleAPFSMedia  <class AppleAPFSMedia, id 0x100000e15, registered, matched, active, busy 0 (132 ms), retain 11>
    | |   |       | |           |                 +-o AppleAPFSMediaBSDClient  <class AppleAPFSMediaBSDClient, id 0x100000e16, registered, matched, active, busy 0 (0 ms), retain 7>
    | |   |       | |           |                 +-o AppleAPFSContainer  <class AppleAPFSContainer, id 0x100000e1d, registered, matched, active, busy 0 (1 ms), retain 8>
    | |   |       | |           |                   +-o DSLR@1  <class AppleAPFSVolume, id 0x100000e1e, registered, matched, active, busy 0 (1 ms), retain 11>
    | |   |       | |           |                     +-o AppleAPFSVolumeBSDClient  <class AppleAPFSVolumeBSDClient, id 0x100000e1f, registered, matched, active, busy 0 (0 ms), retain 7>