SIIG CyberSerial 4S 950 (JJP49012) (JJ-P49012) Serial Adapter
SIIG's long-term business vision, comprehensive product line, effective marketing strategy and exceptional customer support have made SIIG the leading brand for computer add-on products. High-quality ...
Pros: Would be a cheap way to get standard serial ports, if it worked.
Cons: Incompatible with nearly everything, and they had to put actual work into making it incompatible.