Sleek and powerful Ultrabook™ with optical drive Windows 8 or other editions availableFits an optical drive in 21mmEnjoy SonicMaster Lite for more powerful sound performanceInstant on in 2 seconds and longer standby time with the efficiency of Super Hybrid Engine II technologySmart Gesture touchpad for always fingertip-natural computingCombines SSD performance and HDD capacity for better computing experiences Shop Modal header Sleek aesthetic design Beyond being extra thin and light, ASUS S505 ultrabooks pack a full feature set in just 21mm. The cool grey hairline design expresses a personal approach. One-piece molded top casing reinforces notebook strength and rigidity, and the entire style embodies subtlety that meets all your performance portability needs. Amazing audio ASUS SonicMaster Lite gives the ASUS S Series the ability to deliver more powerful sounds and richer bass to provide the best audio experience in the mainstream notebook class. Smartphone-like responsiveness with instant on* Only ASUS notebooks offer you true 2-second instant on resume from sleep or hibernate, cutting out long reboot times and putting you back to your enjoyment right where you left off. Thanks to ASUS Super Hybrid Engine II technology, you also get up to 13 days of standby, with auto data backup should battery charge drop to 5% or less. *Actual S505 standby time may vary due to specific component performance, connected devices, and environmental differentiation. Reliable Performance Windows 8 or other editions available, The ASUS S505CM features up to 3rd generation Intel® Core™ i7 processors with Ivy Bridge technology and NVIDIA® GT 635 series discrete graphics, so you're always in charge of smooth power for daily computing.