The Amprobe RS-USB adapter converts a computer's USB port to a RS-232 serial port and connects devices that have a USB port, including compatible Amprobe meters with download capabilities, cameras, mice, and card readers, to a computer's serial port for transferring data to the computer. The adapter works with computers running the Windows 95, 98, 2000, ME, or XP operating system or the Mac 8.6 and higher operating system. The adapter meets European Conformity (CE) directives and Federal Communications Commission (FCC) regulations.