How to Format SSD on a MacBook. A Solid State Drive is primarily used on laptops and other lightweight devices, as its compact size proves adequate for such portable hardware units.

You might need to format an external hard drive before you can use it with your computer. We have some tips to help the process go smoothly.

I have a 4TB SSD on loan at my office (we're a flash storage company, so... toys!) and I'm trying to get it to work on macOS as an experiment. Problem is, it shows up in Disk Utility as a 1.64TB ...

It’s possible you could force HFS+ on a boot SSD with High Sierra with some Terminal monkeying around, but I can’t see that would end well, and I’m not sure it offers any advantages.