The 2GB RAM memory from PHS-memory is specifically designed for the Sony VAIO VGN-TZ31WN/B model and offers a reliable and powerful upgrade to your laptop's memory. With a storage capacity of 2 gigabytes and a clock frequency of 667 MHz (PC2-5300S), this DDR2 SO-DIMM RAM is ideal for users looking to enhance their laptop's performance. Its compatibility with the Sony VAIO VGN-TZ31WN/B ensures easy installation and optimal functionality. The RAM features 200 pins and operates at a voltage of 1.8 volts, making it an energy-efficient choice for your device. This memory module is an excellent option for anyone looking to improve their laptop's performance, whether for everyday applications or more demanding tasks.

• 100% compatible with Sony VAIO VGN-TZ31WN/B
• Storage capacity of 2GB per module
• Clock frequency of 667 MHz for improved performance
• Energy-efficient with a 1.8 Volt operating voltage.