M1 Mac RAM and storage can be upgraded after purchase, but it's not easy - 9to5Mac
Is It Worth It to Upgrade RAM on a Macbook Pro? Expert Tips
Apple MacBook Pro MF839LL/A 13.3-inch Laptop 2.7GHz Intel Core i5 Processor 8GB RAM 128GB SSD (Scratch and Dent) - Walmart.com
Apple Announces New MacBook Pros With M2 Pro and M2 Max Chips, Up to 96GB RAM, and More - MacRumors
Apple Offers External GPU Enclosure to Developers As Valve Opens Door to VR Mac Gaming - MacRumors
Amazon.com: USB-C Blu-ray SuperDrive Optical Drive External Portable DVD player For Apple MacBook Pro Mid-2018 13 15 Inch Laptop A1990 MR942LL/A MR932LL/A MR9Q2LL/A, Super Multi 8X DVD+-R DL DVD RAM 24X CD
Apple MacBook Pro 14 2023 review: The M2 Pro is slowed down in the small MacBook Pro - NotebookCheck.net Reviews
Stuff to know about all the Macs Apple updated this week | Ars Technica
How To Upgrade RAM in a Mac | Macworld
Adding an external GPU to your Mac is probably a better upgrade option than getting a new one | TechCrunch