There's nothing mainstream about it This smaller, sleeker 15-inch laptop lets you get to work faster than ever thanks to its scalable design and powerful performance. Operating System Available with Windows 10 Pro - for a smooth, versatile PC experience. Welcome to a new age of intelligence ExpressConnect New ExpressConnect automatically joins the strongest access point in the office and directs bandwidth to critical applications, wherever you work. ExpressResponse With Intel® Adaptix™ Technology, prioritize your most important apps, so they open faster and perform better. ExpressSign-in Get to work fast with our PC proximity sensor enabled by Intel® Context Sensing Technology that detects your presence to instantly wake and log you in via the IR camera and Windows Hello, all without lifting a finger. It locks when you walk away, so your work stays safer. ExpressCharge Dell Optimizer extends runtime and improves battery performance by adapting to your patterns. ExpressCharge Boost delivers up to 35% charge in about 20 minutes, or up to 80% charge in an hour with ExpressCharge. Intelligent Audio Collaborate like you're in the same room. Intelligent Audio enhances your audio quality and reduces background noises, so you can hear and be heard, creating a better conference experience for all. Fully loaded and ready to work Take charge: Keep working with outstanding battery life plus intelligent settings to preserve power when you're running low. Choose from a 42WHr battery for lighter weight or a larger 63Whr battery for longer run time. Get longer battery life when you choose the Super Low Power panel, which consumes less power than a standard display without impacting the brightness of the screen.