Lenovo 10KY002BUS S510 SFF Desktop PC, Intel Core i5-6400, 4GB RAM, 500GB HDD, Windows 10 Pro OS, Black Get reliable performance from the Intel Core i5-6400 2.7GHz Quad-Core processor 500GB SATA 7200rpm hard drive has plenty of space to store your digital albums, music library and rich media files Enhanced viewing with the integrated Intel HD 530 graphics SuperMulti DVDRW drive  watch movies on your computer; read CDs and DVDs in multiple formats Windows 10 Pro is so familiar and easy to use, youll feel like an expert. It starts up and resumes fast, has more built-in security to help keep you safe, and comes with great built-in apps like Maps, Photos, Mail & Calendar, Music, and Video. Max Memory: 32 GB