Notebook | Laptop computers

Lenovo (0191376643899 / 510-14AST) - AC adapter frequency: 50 - 60 Hz - AC adapter input voltage: 100 - 240 V - AC adapter included - Bluetooth - Built-in microphone - Card reader integrated - Energy Star certified

Lenovo (0191545135774 / 81A5000VUK) - AC adapter frequency: 50/60 Hz - Memory clock speed: 2400 MHz - On-board graphics adapter base frequency: 200 MHz - On-board graphics adapter burst frequency: 750 MHz | Charging devices

The Surface Book with 2 times more power and up to 17 hours of battery life - Built for performance: Runs professional grade software all day with the enhanced quad core Intel processors and the ideal graphic performance yet with the enhanced NVIDIA Ge Fo