Get a sleek, thin, & light notebook with a screen that rotates to let you share your best work. Or twist & fold the touch-enabled display & go ultra-mobile as a tablet. One device gives you the power to tackle the workday, your way. The HP Elite Book Revolve is optimized for Windows 8, giving you the intuitive touch experience you expect. & with a full-sized, backlit keyboard you have the tools you need to get the job done. Windows 7 configuration is available. Processor Intel Core i 5-3230M 2.6 GHz Intel HD Graphics 4000 3 MB cache, 2 cores Mobile Intel QM77 Express Memory 4GB 1600 M Hz DDR3 SDRAM 2 x SODIMM Hard Drive 500GB SATA 7200rpm Optical Drive None Software Operating System: Windows 7 Professional 64 (available through downgrade rights from Windows 8 Pro) This system is preinstalled with Windows 7 Professional software & also comes with a license & media for Windows 8 Pro software. You may only use one version of the Windows software at a time. Switching between versions will require you to uninstall one version & install the other version. You must back up all data (files, photos, etc.) before uninstalling & installing operating systems to avoid loss of your data. Display 31, 75 cm (12.5") diagonal LED-backlit HD anti-glare Resolution: 1366 x 768 Graphics Intel HD Graphics 4000 Audio SRS Premium Sound PRO Integrated stereo speakers Integrated microphone (dual-microphone array with optional webcam) Stereo headphone/line out Stereo microphone in Networking Intel Centrino 802.11a/b/g/n HP Integrated Module with Bluetooth 4.0+ EDR HP hs 2350 HSPA+ Mobile Broadband Power Supply 65W AC Adapter HP Long Life 6-cell (55 WHr) Li-Ion Interfaces 1 AC power 1 combo stereo headphone/mic jack 1 Display Port 1.1a 1 docking connector 1 RJ-11 1 RJ-45 1 USB (Universal Serial Bus) 2.0 charging 1 USB (Universal Serial Bus) 3.0 1 VGA 1 e SATA/USB 3.0 combo Expansion 1 Express Card/34 1 Secure Digital Warranty 1 Year Manufacturer Warranty