The product description:
URU4500 fingerprint is the latest instrument is more compact a fingerprint device, surface of the hard steel material, appearance is extremely elegant, the output images up to 700dpi, is a superior performance compared to the fingerprint input device, you can a wide range of applications in social security, public security, attendance, fingerprint encryption, embedded, and many other applications.

URU4500 miniature fingerprint scanner that automatically reads the fingerprint image, and through USB interface to transfer digital fingerprint images to the computer requires authentication for notebook computers, desktop computer or other personal computing devices, it is the ideal accessory.

Features:
Small size
Excellent image quality
Encrypted image data
Refused to subtle fingerprints
Refused to fake the image
Support the fingerprint rotation
Rough fingerprint processing
Support dry, wet, or rough fingerprints 
Compatible with all U.are.U applications and development tools to support Biokey Development Tools
Support JAVA development tools
Driver support Windows98, Me, NT4.0, 2000, XP, Vista, Windows Sever 2000,2003,2008

The environment parameters:
Supply voltage: 5.0V + /-0.25V USB offers
Intake fingerprint: 190mA (typical)
Idle: 140mA (typical) Hangs: 1.5mA (max)

Operating temperature: 0 -40
Operating Humidity: 20% -80%

Standard: FCC Class B, CE, ICES, BSMI, MIC, USB, WHQL, VCCI

Specifications:
Pixel resolution: 700DPI
Image crawl area: 14.6mm (center standard width);

18.1mm (standard length)
8-bit grayscale
Product Size: about 65mm * 36mm * 15mm
compatible with USB1.0, 1.1,2.0