ASUS Laptop U31 Series Intel Core i5-2430M 4GB Memory 500GB HDD NVIDIA GeForce GT 520M 13.3" Windows 7 Professional 64-Bit U31SD-XH51

Stunningly light, powerfully beautiful

The newly-redesigned U31SD offers the sheer power of new 2nd generation Intel® Core™ processors in a sleek and light form factor that's fun and easy to carry with stylish portability. You can get more done over a full day of computing with exclusive ASUS Super Hybrid Engine energy optimization, plus everyone will notice your new and elegant notebook, as it clocks in at under an inch in profile - so slim, but so capable!

All-day computing with Super Hybrid Engine

Thanks to exclusive ASUS Super Hybrid Engine technology, the U31SD can switch between different power modes depending on the task at hand. This leads to big energy savings, so the battery lasts up to 10 hours and you can keep using the U31SD without depending on frequent recharging. Extend your computing range with confidence, free from shut-down worries.