portable microscope , Pentium Computer with 700MHz & Above, 20M HD Space CD ROM Driver,128MB RAM, Direct X VGA Card Application :Industrial ... 5V DC) Software Compatibility: TWAIN / VFW/ Direct Show AP (Driver) System Requirement: Pentium Computer with 700MHz & Above, 20M HD Space ... CD ROM Driver,128MB RAM, Direct X VGA CardPC Interface: USB2.0 & ...