>> 3. I/O ports >= 2 >> 4. Mobility would be nice (for laptop) but not necessary. Delta 44 is a great card - "No hassle" indeed! I moved up to RME's Multiface II which is an awesome 8-input card. It has the option of a PCMCIA interface, too, so mobility is possible. Beware of $$$ on this one though. Link