There have been sixty UFC cards with at least 10 fights. When you eliminate the cards that have at least one unranked fighter (by our accounts), you drop that list all the way down to nine cards [89,92,96,102,108,111,FN21,114,116].
Out of these nine, five had at least one fighter ranked #200 or worse.
This leaves four cards:
UFC 92 (10 fights / 2 title fights)
UFC 102 (11 fights / 0 title fights)
UFC 108 (10 fights / 0 title fights)
UFC 116 (11 fights / 1 title fight)
UFC 121 (11 fights / 1 title fight) will join this unique list.
* Rankings approximations were made for all cards, since we only started officially ranking fighters in 2008. This however, is accurate enough for this analysis.