Simples e funcional.
Apenas um cabo usb é necessário para funcionamento. Pequeno e portátil.

Uma review:

The CanoScan LiDE 20 USB flatbed scanner is one of the world's most compact flatbeds, yet it offers big performance and big savings. Just over an inch high, it packs all the features you need to scan images, copy documents, and e-mail your favorite photos, all with one-touch operation.
The LiDE 20 scanner is so intuitive and easy to use that first-time users can get expert results in remarkable color resolution up to 600 x 1,200 dpi and up to 48-bit depth with 281 trillion possible colors. The LiDE 20 scanner is small, but it can tackle the big jobs. The exclusive Z-Lid expansion top lifts one inch high and stays flat for scanning books and magazines. (Most other scanner covers lift only at an angle, often resulting in poor scans.)
Setup and operation are made easy by having one cable for both power and USB data; the scanner needs no extra AC adapter. Scan multiple photos at once with the push of a button. Multi-Scan mode is automatically activated, and it scans all the pictures in a single pass, preparing a separate image file for each. It will even adjust slightly misaligned photos. Scanning multiple pages into a PDF file is just as easy. Innovative software even allows you to save your images directly to CDs as easily as scan, click, and burn (in Windows only). Plus, Canon integrated QARE 2.0 (Quality Automatic Retouching and Enhancement) technology is designed to help perfect every scan by automatically removing much of the dirt and scratches from images, making you look like a pro.