1. Field of the Invention
The present invention relates to card edge connectors, more particularly to card edge connectors for mating with a memory card.
2. Description of Related Art
Card edge connectors are widely employed in computer device to receive a memory card, such as serial DDR3 and serial DDR4. The connector usually has an elongated housing, a plurality of contacts retained in the housing for electrically connecting a corresponding memory card, and two ejectors at both ends thereof for locking the memory card. The housing has a pair of sidewalls and a central slot for receiving the memory card. Each side wall defines a plurality of passageways extending therethrough. The passageways communicate with the center slot. The contacts are arranged in two rows retained in the passageways of two side walls respectively, and the contacts extend into the center slot to sandwich the memory card and ensure the electronic contact with the card. The memory card has a pair of notches at a middle position of two side edges thereof. The ejectors has a lock portion at an upper side thereof for locking the notches respectively to keep a stable working state, and an ejecting portion at a lower side thereof for ejecting the memory card to a convenient replacement.
With the development of the electronic industry, the number of the gold fingers increases to broaden the signal transmission channel and improve the signal transmission speed. Of course, the number of the contacts in the card edge connector increase codependent. When the memory card is inserted into the connector, it need overcome a big insertion force to insert the memory card into the central slot, therefore, we could not be aware of whether the card is in place or not, and it always makes inconvenience and confuse for users.
Hence, an improved card edge connector is desired to overcome the above problems.