Samsung Electronics GmbH Hello, thank you for your inquiry. The Samsung 980 PCIe® 3.0 NVMe™ M.2 SSD - 500 GB MZ-V8V500BW is not compatible with a MacBook Pro5.1. This SSD requires the motherboard to have an M.2 slot. In order to use the full performance of the SSD, the M.2 slot should also have PCIe 3.0 with 4 lanes. As alternatives, you can take a look at the Samsung SSDs 870 QVO, 870 EVO and 860 PRO. In case of doubt, please contact the device manufacturer directly. Kind regards, Your Samsung Service Team