The Epiphan VGA2USB LR frame grabber doesn't mess around. How It Works 16 MB of onboard memory allows the unit to perform flawlessly, grabbing at least 10 frames per second of uncompressed video at 1280 x 1024 resolution or 30 frames per second of compressed video at 1280 x 1024. Use Using the Epiphan VGA2USB VGA to USB converter is as easy as connecting it to your VGA source via an included cable and connecting it to your system's USB port.