You can spend more time running your business and less time concerned with IT when you have Windows 10 Pro. Build-in security, enhanced productivity features, and easy-to-implement management tools provide an essential foundation to keep your business humming. Windows 10 Pro Amazing performance, blazing fast startups, brilliant HD video, and graphics, battery life that lasts as long as you do, and speed that keeps up with your imagination, that's what you'll find in the 6th Gen Intel® Core™ processors—Intel's best ever. Intel Core i5-6xxx Solid state drive SSD HP Z240 Refurbished, Intel® Core™ i5, 16 GB, DDR4-SDRAM, 512 GB, Windows 10 Pro, 64-bit HP Z240 Refurbished. Processor family: Intel® Core™ i5. Internal memory: 16 GB, Internal memory type: DDR4-SDRAM, Memory clock speed: 2400 MHz. Total storage capacity: 512 GB, Storage media: SSD. On-board graphics card model: Intel® HD Graphics 530, Discrete graphics card model: NVIDIA® GeForce® GT 620. Operating system installed: Windows 10 Pro, Operating system architecture: 64-bit. Chassis type: SFF. Product type: Workstation. Weight: 5.7 kg. Product colour: Black