Ucom 704 Driver Download Free !link! -

90% of UCOM 704 devices use the Prolific PL-2303 series chipset.

Finding a doesn’t have to be a nightmare. Stick to official sources (Prolific or Microsoft), follow the installation steps precisely, and manage Windows security settings to allow legacy hardware.

Try plugging the device into a different USB port. If you are using a USB hub, plug it directly into the motherboard port.