AC/ DC Power adapter for Mustek A3 USB 600 Pro ScanExpress Scanner Pro A3USB1200 603827806963 | eBay
Mustek ScanExpress A3 USB и Windows 10 - YouTube
Amazon.com: AC Adapter for Mustek A3 USB 600 Pro ScanExpress Scanner Pro A3USB1200 600 CP 600CP Flatbed Spare AC,DC Charger Power Supply Cord Plug : Electronics