HP Pavilion 23-h070 TouchSmart AIO - Windows 8.1 with Intel Core i3-4130T processor. 5 point optical touch enabled 23" diagonal IPS widescreen full HD LED backlit display. 4GB PC3 12800 DDR3L 1600 SDRAM memory. 1x4GB. 1TB 7200RPM serial ATA hard drive. Intel HD Graphics 4400 and up to 1792MB total available graphics memory as allocated by Windows8. Wireless chiclet style keyboard with volume control. Win8 hot keys and optical mouse. 2 x USB 3.0. Wireless LAN 802.11b/g/n featuring Single-band.