Named Equipment is T1 equipment with a special name and enhanced characteristics. In general, named equipment will have some difference in fitting characteristics and performance attributes. In some cases, named equipment is considered more useful than its T2 counterpart.
See the Named Items Chart for the list and general ranking of all named items. Any module listed as "Best Named" is likely to be a worthy substitute for a T2 module while you work towards the higher T2 skill requirements.