Apple MacBook Pro 16'' (1TB SSD 16GB Intel Core i9) Touch Laptop - MVVM2LL/A for sale online | eBay
How-To: Update your old MacBook, Mac mini, or Mac Pro hard drive with a fast SSD - 9to5Mac
512GB version of the new MacBook Pro has a slower SSD than the Mac it replaces - Apple is using fewer chips in M2 Macs to provide the same amount of storage. :