L3N88AV-APJX HP ProOne 600 G2 All-in-One/CT Series (Standard Model) Base Unit ProOne 600 G2 All-in-One Base Unit OS ◆ Windows 7 Professional (32bit) Preinstalled (Windows 10 Pro Down Grade) (Japanese Version) Processor Intel (R) (TM) Corei5-6500 Processor 3.2 GHz Chipset Intel (R) Q150 Chipset Memory 4GB DDR4 SDRAM (2133MHz/1DIMM) Storage 500GB Hard Disk Drive (SATA/600, 7200rpm) Hard Disk Partition No Media Card Reader Writer SD Media Card Reader Writer Optical Drive Super Multi-Drive (SATA, 9.5mm Slim Trayload) Display 21.5" Wide Full HD LCD Screen ( Integrated LCD) Graphics Intel (R) HD Graphics (Built-In Processor) Office Soft Microsoft(R) No Office Power Saving Soft IPM PLUS Security Chip (TPM) Version No Security Software OS Standard Microsoft Security Software HP Client Security No Keyboard & Mouse USB Standard Keyboard (109A) & USB Laser Mouse Wireless Keyboard & Mouse No Power Unit 80PLUS Built-in AC Power Supply (90% efficiency. )