Description
A flash drive that will not show up, an external disk that crawls, a nameless "unknown device" in Device Manager. Windows will not tell you which port, cable or driver is to blame.
USB Device Tree Viewer draws your whole USB topology as a tree: host controllers, root hubs, ports and every device plugged into them. Click a node and the right pane shows speed, power state, connection status and descriptors, with drive letters and COM port numbers attached to the devices that own them.
Full device tree: see exactly which device sits on which hub and port.
Detailed properties: bus type, power state, port status and descriptors help you spot underpowered ports and devices stuck at a slower speed.
Drive letters and COM ports: storage and serial devices are mapped straight onto their tree nodes.
Search and export: find a device by keyword and export the whole report as text to share.
Portable: a single exe, unzip and run. It only reads and never changes device settings.
USB Device Tree Viewer draws your whole USB topology as a tree: host controllers, root hubs, ports and every device plugged into them. Click a node and the right pane shows speed, power state, connection status and descriptors, with drive letters and COM port numbers attached to the devices that own them.
Features
Full device tree: see exactly which device sits on which hub and port.
Detailed properties: bus type, power state, port status and descriptors help you spot underpowered ports and devices stuck at a slower speed.
Drive letters and COM ports: storage and serial devices are mapped straight onto their tree nodes.
Search and export: find a device by keyword and export the whole report as text to share.
Portable: a single exe, unzip and run. It only reads and never changes device settings.
