This is a replacement DVI-to-VGA Adapter for your Dell Precision Workstation's graphics cards with DVI-I outputs. Each Precision Workstation that requires this type of adapter ships with it in the Dell system box. The adapter converts digital DVI output designed for digital flat panels to standard analog VGA output for analog CRT monitors or flat panels. This product has been tested and validated on Dell systems to ensure it will work with your computer and is compatible with Dell Precision 730 / 650 / 450 / 530 / 350 / 340 / 330 / 620 / 420 / 220 / 610 / 410 / 210 / 400 Workstations. It is supported by Dell Technical Support when used with a Dell system.