The 42mm M.2 SATA SSD Everyone Forgot About—Why It’s the Silent Workhorse of Industry

You’re a developer or an engineer. You know the M.2 2280 NVMe drive: 80mm long, lightning-fast Gen 4 speeds, and the go-to choice for modern PCs. On the shelf nearby, the M.2 2242 SATA drive is an afterthought. It’s just 42mm, uses the older SATA interface, and is often the default in cheap, low-power systems. It looks like a relic. For a personal build, you would never pick it. But imagine you are designing a controller for a factory robot that runs 24/7. Or a data logger for a train that cross