Create anywhere using HP’s ZBook workstation Ultrabook™^[3] in a 15.6” diagonal screen size. This customizable workstation delivers impressive professional 3D graphics and outstanding performance even from the most demanding applications. All in all, an unprecedented sleek and stylish design. Windows 7 Professional 64 (available through downgrade rights from Windows 8.1 Pro Update 64) Optimize performance Get the performance you need with HP’s thinnest and lightest mobile workstations equipped with Windows 8.1,^[1] the latest 5th generation Intel® Core™ i5/i7 processors,^[4] professional AMD FirePro™ 3D graphics,^[5] and the HP Z Turbo Drive for exceptional storage performance. Never lets you down Confidently take on your workday with the durable and reliable HP ZBook 15u. This ZBook mobile workstation is designed to undergo MIL-STD 810G testing^[6] and underwent 115,000 hours of testing in the HP Total Test Process. ISV-certifications help ensure that your ZBook works with the workstation applications you need to get the job done. Innovate anywhere Take powerful computing where you need to work. The ZBook 15u Mobile Workstation’s innovative sleek design is impressive on the road, at client sites, and satellite offices. HP’s workstation Ultrabook™ redefines mobile computing.