HP ProBook 4540S 15.6″ LaptopIntel® Core™ i3-3110M Processor3M Cache, 2.40 GHz15.6-inch diagonal LED-backlit HD anti-glare (1366 x 768) display8 GB MemoryStorage optionsIntel HD Graphics 4000DVD /-RW SuperMulti DL driveWebCam 720p HDHP spill-resistant keyboardSRS premium soundIntegrated stereo speakersIntegrated microphoneWireless LAN (WLAN)Realtek 10/100/1000 ethernet controllerWindows 10 Pro37.5 x 25.6 x 2.8 cm (14.76 x 10.09 x 1.13 in)Charger included Optimized for Genuine Windows 10 Pro, this HP ProBook 4540s notebook is ideal for SMBs.It offers multimedia tools, easy-to-use security, and aluminum casing for added protection.The aluminum casing offers extended durability to keep up with mobile use.The smudge-resistant and wear-resistant HP DuraFinish keeps the metallic gray color looking polished.The spill-resistant keyboard helps protect sensitive electronics and key components from minor spills with a thin layer of Mylar film under the keyboard. Accidents happen. HP 3D DriveGuard helps protect your laptop’s hard drive against impact, bumps and drops so your data has enhanced protection.