257DG

Model number 257DG. Desktop Computers. Compatibility Dell Alienware 17 R1, 17 R2, 17 R3, 17 R4, 17 R5, m17, G Series G3 3779, Inspiron 17 (5767), 17 (5765), 17 (5770), 17 (5775), 3781, 3785, 17 (3793), 17 (3780), 17 (3790), Precision 17 (7710), 7720, 7730.