Mark

From Star Trek Online Wiki

The Mark, or Mk, level of an item corresponds directly to the minimum rank a player must hold in order to be able to equip the item. The odd-numbered Marks (e.g. I, III, V, VII, IX) correspond to slightly lower-quality versions of the next Mark up. In other words, a Mk III item is a lower-quality version of a Mk IV item, both of which can be used by their corresponding rank (Lt. Commander). The higher the mark number, the greater the items' abilities.

Mark Tiers

Tier Mark Item Rank
1st Mark III Lieutenant
2nd Mark IIIIV Lt. Commander
3rd Mark VVI Commander
4th Mark VIIVIII Captain
5th Mark IXX Admiral / General

See also

Rarity --A measure of an item's modifiers to an ability.