| 91276-421HLF |  | Amphenol Communications Solutions | BergStik® 2.54mm, Board To Board Connector, Unshrouded Header, Through Hole, Single Row, 21 Positions, 2.54mm Pitch, Vertical, 22.86mm (0.9in) Mating, 5.72mm (0.225in) Tail. | PDF |  | 
| 78511-421HLF |  | Amphenol Communications Solutions | BergStik®, Board to Board connector, Unshrouded Vertical Header, Through Hole, Single Row,  21 Positions, 2.54 mm Pitch. | PDF |  | 
| 93944-421HLF |  | Amphenol Communications Solutions | BergStik® 2.54mm, Board To Board Connector, Unshrouded Vertical Header, Through Hole, Single Row, 21 Positions, 2.54mm (0.100in) Pitch. | PDF |  | 
| 87916-421HLF |  | Amphenol Communications Solutions | BergStik® 2.54mm, Board To Board Connector, Unshrouded Header, Through Hole, Single Row, 21 Positions, 2.54mm Pitch, Vertical, 21.08mm (0.83in) Mating, 3.25mm (0.128in) Tail. | PDF |  | 
| 68771-421HLF |  | Amphenol Communications Solutions | BergStik®, Board to Board connector, Unshrouded Header, Through Hole, Single Row, 21 Positions, 2.54 mm Pitch, Vertical, 6.86 mm (0.27 in.) Mating, 2.54 mm (0.1 in.) Tail | PDF |  |