The U.are.U 4500 Reader is an elegant, powerful fingerprint identity machine. With an executive-class look and feel, the U.are.U 4500 Reader is perfect for power users and shared environments. Its design is sleek and compact to conserve valuable desk space but it stays right where you put it because of its nice heft and special undercoating. The U.are.U 4500 radiates an attractive blue glow that provides an unobtrusive presence in low light environments and also ensures that it does not compete with alarm colors in settings such as healthcare. To use, you simply place your finger on the glowing window, and the reader quickly and automatically scans your fingerprint. For superior user feedback, a red "flash" indicates that a fingerprint image has been captured. On-board electronics calibrate the reader and encrypt the scanned data before sending it over the USB interface. DigitalPersona utilize optical fingerprint scanning technology to achieve excellent image quality, a capture area and superior reliability. The U.are.U 4500 Reader and DigitalPersona Fingerprint Recognition Engine have an unmatched ability to authenticate even the most difficult accurately and regardless of placement angle. The U.are.U 4500 Reader can be purchased for use with DigitalPersona Pro Workstation, DigitalPersona Pro Kiosk, DigitalPersona Online, DigitalPersona Personal or any of the digitalPersona packages. Whether you are an enterprise customer, a system integrator or a home user, DigitalPersona's fingerprint authentication solutions provide a natural extension to your security system and applications. 1. Blue LED 2. Small form factor 3. Excellent image quality 4. Superior ESD resistance 5. Encrypted fingerprint data 6. Latent print rejection 7. finger rejection 8. Rotationinvariant 9. Rugged 10. Works well with dry, moist or rough 11. Compatible with for Windows Vista, XP Professional, 2000 and Windows Server 2000, 2003, 2008 12. Pixel resolution:512 (average x, y over the scan area) 13. Scan capture area:14.6 mm (. width at center) 18.1 mm (. length) 14. 8-bit grayscale (256 levels of gray) 15. Compatible with USB 1.0, 1.1 and 2.0 (Full Speed) specifications 16. Indoor, home and office use Colour:As Shown Material:plastic Size:Reader size (approximate): 65 mm x 36 mm x 15.56 mm Package Contents: 1 * Fingerprint Scanner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.