click here http://www.dell.com/support/home/us/...dhs&cs=19&l=en and enter your service tag number. Dell keeps a record of every computer they ever sold and customizes the download page accordingly (with some occasional errors) according to what hardware it has in it. You order a webcam? the driver is there. You didn't get one? it's not. If you can't find your service tag number there's an activex control you can let them install under IE that will find the number. Otherwise you can navigate to your product's general page through the links at the bottom. Here's a general download link for the 620 that includes all hardware available in that model. I suggest you filter with your service tag to cut the list down. http://www.dell.com/support/drivers/...optiplex-gx620