- You cannot add "Lenovo 15.6" ThinkBook 15 G2 Intel Core i3 - 1115G4 (1.7 GHz Up to 4.1 GHz 2 Cores - 4 Threads) - 11th Generation - 4GB DDR4 RAM - 256GB SSD - 15.6" FHD 220nits - FP Reader - TPM 2.0 Dolby Audio - DOS - Mineral Gray 1 Year Internation Warranty" to the cart because the product is out of stock.