Arch Memory 4 GB (1 x 4 GB) 204-Pin DDR3 So-dimm for Dell Inspiron 15R (N5010) RAM Arch Memory is a Registered Trademark of Arch Computer, LLC Data Transfer Rate: 1333Mhz System Type: Laptops Bus Type: PC-10600 Certified for this Dell Model with Intel i7 and AMD Phenom processors