HP 18-5010 AiO. Windows 8.1. AMD E1-2500 Accelerated Processor. 18.5" diagonal widescreen HD LED backlit display. 4GB PC3-10600 DDR3-1333 SDRAM memory with 1x4GB expandable to 16GB. 500GB 7200RPM Serial ATA hard dive. AMD Radeon HD 8240 Graphics. USB keyboard with volume control and optical mouse. Slim Tray SuperMulti DVD Burner. 2 USB 3.0. Wireless LAN 802.11b/g/n featuring Single-band (2.4Ghz) 1x.1.