Electrical connector

An electrical connector comprising:

• an insulating housing having a plurality of contact accommodating cavities;
• a retainer moveable between a temporary locking position and a main locking position, the retainer having first retainer arms that extend into a front surface of the housing, the first retainer arms having a second locking member formed on a top surface in a vicinity of a free end of the first retainer arms and a third locking member formed on a bottom surface in substantially a center of the first retainer arms, the second and third locking members being configured to abut the housing in the temporary locking position so that the retainer is prevented from moving from the temporary locking position to the main locking position, the free end of the first retainer arms including a first locking member configured to abut the housing in the temporary locking position so that the retainer is prevented from being removed from the housing;
• and
• the housing including first locking openings formed in a top wall of the housing adjacent to a first locking member that exposes the first locking member to an outside of the housing.