not sure how this degraded into a smart card reader discussion but the T410 can have all three. the smart card reader is located on the left (above the HDD if so equipped), SDHC/MMC on the front near the latch, and expresscard/34 on the right.
since pictures are outstanding substitutions for lengthy explanations (
), the photos at the bottom of this article on NBR should help: http://www.notebookreview.com/default.a ... nkpad+t410
now, if we're talking a T410s (emphasis on the 's') then that's a different animal altogether. those come with expresscard/34 no matter what but the slot gets populated with a multicard reader if optioned as such. the card reader can be removed to regain expresscard functionality but one must remove the keyboard and an internal screw to eject the reader.