S.O.DIMM Connectors SERIES 6403 144 SMT 144P Straight SMT Type 3.3V Ordering Code 20 6403 144 XXX 856 VARIATION ST. SMT TYPE 3.3V 120 (without boss) 121 (with boss) 5.0V Ordering Code 20 6403 144 XXX 856 VARIATION ST. SMT TYPE 5.0V 130 (without boss) 131 (with boss) S.O.DIMM Connectors SERIES 6403 144 DIP 144P Straight Through Hole Type 3.3V Ordering Code 20 6403 144 XXX 856 VARIATION ST. THROUGH HOLE TYPE 000 (without boss) 001 (with boss) 5.0V Ordering Code 20 6403 144 XXX 856 VARIATION ST. THROUGH HOLE TYPE 010 (without boss) 011 (with boss)