you misspelled "less". This works only with their SDK (and non public build of dosbox), latency is bad due to USB so things that read a lot over ISA are out of the question (think playing doom on ISA vga)
Latency is 3 orders of magnitude worse. USB 125µs while ISA ~500ns. No problem when writing if you do write coalesce/combining, big problem when reading from ISA devices.