The last dump (10-15) had a bugcheck = 0x9f, probable cause = usbhub.sus, the MS USB hub driver.
usbhub.sys is tossed out here as a sacrificial lamb and is not the cause.
I would suggest that you find out what these 3 drives are for and either update them or remove the devices they are attached to. They all pre-date Windows 7, but the last is of special concern given its 2004 timestamp -
Regards. . .
CVPNDRVA.sys Mon Jul 16 10:57:10 2007 (469BB176)
dne2000.sys Tue Jan 23 23:17:24 2007 (45B70804)
ac97via.sys Mon Nov 22 12:29:55 2004 (41A24C43)