HP ZBook 17 G4 Mobile Workstation, Be productive in any situation. Windows 10 Pro and powerful security, collaboration, and connectivity from HP help you power through your day on the HP ZBook 17. Extremely responsive experience with heavy workloads and file sizes with up to 64 GB DDR4 memory. Plus, help protect your data with optional ECC memory. Reduce boot up, file transfers and application load times by revolutionizing how your HP ZBook handles large files with 4 TB storage, including the optional dual HP Z Turbo Drives.