Dell XPS 15 9550 i7 4k Touch Screen 16GB RAM 512GB Memory - Excellent Condition. A well looked after machine as shown by the pictures. Have since moved on to a macbook and therefore have no use for the item. 4K 15 TOUCH SCREEN (rarely used the touchscreen feature so you'll find the screen to be in pristine condition with no marks). Infinity screen - edge to edge. The item "Dell XPS 15 9550 i7 4k Touch Screen 16GB RAM 512GB Memory Excellent Condition" is in sale since Sunday, November 17, 2019. This item is in the category "Computers/Tablets & Networking\Laptops & Netbooks\PC Laptops & Netbooks". The seller is "allstarvintage_ltd" and is located in Uckfield.