Make sure this fitsby entering your model number. 21.5" Desktop, 2.9GHz Intel Dual Core i5 8GB Memory, 1TB HDD NVIDIA GeForce GT 750M graphics processor Connectivity includes four USB 3.0 ports, dual Thunderbolt ports, Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n compatible), and Bluetooth 4.0. Fresh installation of macOS 10.14 Mojave, includes new poweradapter