I purchased this as a sample directly from a Chinese manufacturer. It's practically new. Functionality has been confirmed, and there are no issues. The same model is also sold on crowdfunding platforms and Amazon. Brand: VIISAN Product Dimensions: 11 x 15 x 40.2 cm Item Model Number: K21 Manufacturer: VIISAN Operating System: Windows, Mac Item Weight: 1.38 kg Color: Black It's in excellent condition, having only been tested for functionality. <Quoted from the official website> K21 Smart and Professional Camera Scanner The K21 is a smart and professional camera scanner with a laser positioning guide function for desktops and laptops using a USB connection. The built-in 20.1-megapixel CMOS camera sensor allows for capturing and outputting high-quality images. In addition to these excellent features, the OfficeCam scanning software bundled with this scanner provides excellent results when scanning books. For example, it can automatically digitally flatten curved pages, erase fingers from scanned photos, repair damaged edges of documents, purify backgrounds, rotate pages based on text orientation, and automatically split double-sided pages into separate image files. Furthermore, the embedded OCR function can be used to convert batch-scanned images into searchable PDF or editable Word, Excel, and text-to-speech file formats.