I think part of it has to do with the workloads you're using. If you're using it as a disc replacement for, say, a 286/386, it comes from an era where disc per

I think part of it has to do with the workloads you're using. If you're using it as a disc replacement for, say, a 286/386, it comes from an era where disc performance was far worse, so the software is usually not going to hit the disc gratuitiously. Also, dealing with an adapter that's single-threaded and taps out at 25Mbps isn't a big deal when you're dealing with an environment with primitive cooperative multitasking (i. e. DOS/Win3) and attached via a bus that tops out at half that. Now, it could be an issue in later systems-- something like a late 486 or beyond, where it has a local-bus/VL-bus/PCI disc controller and might be used with Linux or Windows NT might work poorly with those adapters, but then you're probably able to use a commercial PATA or SATA+adaptor SSD.