VIISAN 3120 is designed for high-quality scanning of artworks, photos, painting albums, books, magazines, newspapers, CAD drawings, and other large document items up to 304 x 426 mm (11.98" x 16.8") in size. It is ideal for school projects, business work, graphic designing, and digital publishing work. [Power Compatibility:] This A3 flatbed scanner is equipped with a universal power adapter (AC 100–240V, 50/60Hz, 12V/2A), making it fully compatible with standard voltage requirements in the United States and most countries worldwide. Simply plug it in and use it with confidence—no special converters or additional accessories needed. The VF3120 flatbed scanner offers the fastest scanning speed of 8 sec (200dpi, A3-size color). It also provides a maximum optical resolution of 1200 x 1200 dpi which delivers a color depth of 48-bit vivid true-to-life image and realizes smoother and more detailed color gradients and variations The Auto-Scan function enables the scanner to scan automatically when the scanner lid is closed. It enhances the efficiency of the continuous scanning process. and LED Light Source, Save Energy, No Warm-Up Time, No More Waiting The VF3120 features in frameless and narrow boundary design which allows to scanning of large documents, photo albums, books, magazines, and thick items. It helps you work efficiently with four-panel buttons enabling scan, email, print, and even create a single or multipage PDF. All in a snap. (Note: The A3 flatbed uses a CIS sensor that can only scan flat paper images, not three-dimensional items. Otherwise, it will lead to unclear or blurred scanning results. So it is not recommended to scan clothes or CDs, acrylic sleeves, etc.) Compatible with Windows TWAIN, WIA, and MacOS ICA drivers. WIA only supports 600 dpi. Support Windows 7/8.1/10/11 and MacOS 10.15 or later for Image Capture (ICA) driver only. Note: To scan images at 1200 dpi, please use our supplied ViiScan software. It can scan up to 1200x1200 DPI for full-size A3 documents on Windows OS. For MacOS, the VF3120 scanner software can achieve 1200 dpi for a full-size A3 document. Regarding WIA, we currently only support scanning up to 600 dpi due to limitations imposed by Microsoft [1-year limited warranty] We provide a one-year warranty for Non-man-made damage. Note: If white lines appear during scanning, you need to simply clean the scanner. Please kindly contact our customer service for how to clean it The VIISAN 3120 features in frameless and narrow boundary design which allows to scan large documents, photo albums, books, magazines, and thick items. It helps you work efficiently with four panel buttons enabling scan, email, print and even create a single or multipage PDF. All in a snap. The VIISAN 3120 offers fastest scanning speed of 8 sec (200dpi, A3-size color). It also provides a maximum optical resolution of 1200 x 1200 dpi which delivers a color depth of 48-bit vivid true-to-life image and realizes smoother and more detailed color gradient and variations. Besides, VIISAN 3120 bundles with a powerful software pack which produces beautiful scans with its smart image processing algorithm and helps organize the scanned data as well.