Receipts, invoices, business cards, letters, or important documents: the IRIScan Executive 4 scans the front and back of all your documents in the blink of an eye (up to 8 pages per minute duplex or 16 images per minute). Thanks to a high-resolution image capture system (up to 600 DPI) combined with advanced document format detection, the IRIScan Executive 4 can perform high-quality scans in color or black and white. Size detection and automatic cropping of documents Powered by the USB cable provided: no need to plug it into a wall socket.