Acer Aspire Z1621UR22 Touchscreen 21.5" All-in-One Intel Pentium Quad-core 2.16GHz, 4GB RAM, 500GB w/Windows 8.1(Certified Refurbished) This Certified Refurbished product is certified factory refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty. Acers Build Your Own Cloud (BYOC)lives on your own device so the storage capacity of your cloud can be as big as you want, yet with ultimate privacy and security. 1920x1080 Screen Resolution Sound is rich and clear fromtwo front-facing hi-fi stereo speakers with a built-in subwooferthat provide absolute multimedia enjoyment. Wideviewing angles up to 178 degreesand an adjustable standtilts from 15 to 80