The successor to the TX series was the TZ series in May 2007. This new design featured an optional 32 or 64GB Solid State Drive (SSD) for rapid boot-up times, quicker application launches and greater durability. If selected, a 250 GB Hard Drive could also have been included in place of the built-in CD/DVD drive to provide room for additional storage. For security, this model included a biometric fingerprint sensor and Trusted Platform Module. The TZ offered a built-in highly miniaturized Motion Eye camera built into the LCD panel for video conferencing. Additional features included the XBRITE LCD, integrated Wireless Wide Area Network (WWAN) technology and Bluetooth technology.