The Samsung 870 EVO SSD (500 GB, 2.5") is technically compatible with a MacBook Pro 17" early 2011, as it has a SATA III interface, which is supported in older MacBooks. However, there may be problems during installation or booting due to firmware or software restrictions. It is recommended to use the SSD as a replacement for the existing hard drive and ensure that the operating system is installed correctly.

Samsung Electronics GmbH
Hello,
Thank you for your enquiry.
The Samsung SSD 870 EVO SATA III 2.5 inch - 500 GB MZ-77E500B/EU is compatible with the MacBookPro8,3 (17″, early 2011). For the Samsung SSD 870 EVO SATA III 2.5 inch, your device requires a SATA 6 Gb/s interface, whereby the SSD is also compatible with a SATA 3 Gb/s & SATA 1.5 Gb/s interface, as well as a free installation slot in the 2.5 inch form factor.
Other compatible SSD models are the Samsung 870 QVO and the Samsung 860 PRO.
If in doubt, please contact Apple customer service.
Best regards from Eschborn
Your Samsung Service Team