A 4TB SSD Under $200, Anyone? I Found 3 Killer SSD Deals Worth Snagging Before Black Friday

Buying a cheap SSD is equal parts a math problem and an art: Is the cost per gigabyte competitive? Is the drive the right bus type (SATA or PCI Express), form factor (2.5-inch or M.2), and speed (nothing but question marks, that)? The best deal on an SSD is no deal at all if it doesn’t fit or work in your PC, or if you’ll overpay for speed potential that your system can’t realize. I’ve been covering the world of PC storage since 1993—in that time, I’ve edited or written…