The NX series is a unique concept for a lifestyle computer. The package includes a notebook, mouse & external hard drive. An emphasis on the "Bang & Olufsen ICEpower speaker system" on either side of the screen has created a remarkable design unlike any other on the market. Similarly the NX90 introduces dual Touch pads on either side of the keyboard and an external mouse with remote for easy to use multi-media control. The external drive uses a USB cord with resilience, stopping it from becoming entangled.