ASUS CM6870-US011S Desktop PC Intel Core i7-3770 3.40GHz 16GB DDR3 4TB HDD Blu-Ray Combo NVIDIA GeForce GT 640 Windows 8 New - Retail 1-Year Limited Warranty ASUS CM6870-US011S ASUS CM6870-US011S Desktop PC Intel Core i7-3770 3.40GHz 16GB DDR3 4TB HDD Blu-Ray Combo NVIDIA GeForce GT 640 Windows 8