Support Information:
Device Type: Network Devices
Manufacturer: compaq presario
Model: c500us
Interface: IDE
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=&qa5=12&qa7=1500&dp=2&qm0=c500us&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=compaq+presario+Network+Devices+compaq+presario+ c500us+Windows+XP+Professional+)

Compaq never made a Presario c500us that I'm aware of and it cannot be found on the HP website. They made a c5xx series so you'll need to be specific with the model number.

Compaq (HP) support: http://h10025.www1.hp.com/ewfrf/wc/pfinder?lc=en&dlc=en&cc=us&tool=&query=presario+c500us