Lenovo ThinkPad T520 Intel® Core™ i5 i5-2520M Laptop 39.6 cm (15.6") HD+ 4 GB DDR3-SDRAM 320 GB HDD Windows 7 Professional Black

Energy-saving features.
- Lenovo Battery Stretch lets you make temporary selections in extreme situations to extend battery life.
- NVIDIA® Graphics with Optimus™ technology gives you the graphics power you want with the battery life you need.
- Solid-state storage drives offer greatest performance with lower risk of failure.
- Optimized battery-life increased 30% through power reduction to unnecessary hardware features, while playing DVD, MP3, or streaming from the Web.
- Green Power Scheme and ThinkPad EnergySaver technology allow you to achieve green power-saving standards and preserve mobile computing time.

T Series laptops give you superior graphics performance and audio.
- Intel® HD integrated graphics provides provides 2x better graphic performance than previous generations.
- Intense graphics and extended battery life.†NVIDIA® Optimus™ technology automatically switches to the built-in NVIDIA graphics card only when you need powerful graphics performance. Whether you're putting together a visually intensive presentation on a long-haul flight, heading up three floors to share the latest multimedia design, or you're in a meeting that runs way over schedule, you know you'll get the most out of your battery life.†
- Support up to four monitors with NVIDIA Optimus technology.†
- LED backlit displays are mercury-free and generate 25% brighter displays, boast crisper colors, consume less power and weigh 70 grams less than conventional CCFL displays. Use the wide dimming range to reduce brightness while still experiencing a clear display in dim environments.
- Dolby® Home Theater® with virtual surround sound technology.†
- 16:9 aspect ratio with new HD LCD format enhances your viewing experience. Plus, the T520 and T420 feature a high-end resolution FHD option with 95% color gamut for true color.†
- DisplayPort video connector lets you attach a high-resolution digital display to your notebook.† Use this next-generation display interface technology for everything from monitors to TVs to projectors and it even supports audio.

Lenovo ThinkPad T520, Intel® Core™ i5, 2.5 GHz, 39.6 cm (15.6"), 1600 x 900 pixels, 4 GB, 320 GB