Sony VAIO VGN-Z610Y/B 13.1-Inch Widescreen (Black) Intel Centrino 2 processor technology with interrelated Intel Core2 Duo mobile processor P8600 4GB PC2-8500 DDR3 SDRAM Multiformat DVDRW/CD-RW drive with double-layer support 13.1" backlit LED widescreen display Built-in biometric fingerprint reader