Apples new M1 Macs wont work with external GPUs – Engadget

There’s also been some focus on the fact that the 13-inch MacBook Pro M1 models only include two USB-C ports onboard instead of four, but whether or not you think that’s enough ports, it’s consistent with the cheaper Intel models it replaces. A more striking limitation is the one we’ve already noted, that the MBP is limited to 16GB of RAM — if you think you’ll need 32GB then you’ll have to opt for an Intel-powered model.