Easy to deploy, sleek, and feature-rich, the HP ProOne 400 All-in- One PC features a contemporary design with business-class performance, collaboration, security, and manageability features. Functionality for the multi-device world Provide users with multiple devices options for how they work and stay productive. Sleek, elegant design Stylish design and clean lines make this AiO suitable for a front desk or space-constrained work environments.