The Qhm495lm typically connects via USB (virtual COM port), RS-232 serial, or Ethernet. Each connection mode may require a different driver package. Most users searching for a "Quantum Qhm495lm driver download" are using the on Windows 10 or 11, but we also cover legacy systems like Windows 7 and POSReady.
Most versions of Windows 8, 10, and 11 have built-in USB video class (UVC) drivers that will automatically detect the QHM495LM. Quantum Qhm495lm Driver Download