This laptop based on dell xps 15 l502x and this laptop is very usefull for do any work by doing more peple and dell xps 15 l502x is ease to use this laptop is very comfortale usable laptop and in this laptop have ram, rom, graphic card, processor, hard disk, and motherbored. this laptop is very important as base of quality and durability nd this laptop is also value for money and its service and support also very good thank you.