lsusb - Optiplex 780 Chess
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 07d1:3c0a D-Link System DWA-140 RangeBooster N Adapter(rev.B2) [Ralink RT3072]
Bus 003 Device 002: ID 041e:3f02 Creative Technology, Ltd E-Mu 0202
Bus 007 Device 002: ID 04a9:2206 Canon, Inc. CanoScan N650U/N656U
Bus 008 Device 002: ID 046d:c50e Logitech, Inc. Cordless Mouse Receiver
Bus 008 Device 003: ID 049f:000e Compaq Computer Corp. Internet Keyboard