A card connector assembly includes: an electrical connector (100) including a main body, plural contacts in the main body, and a tray guiding mechanism, the tray guiding mechanism including a slider (17), a pin member (19) coupled between the slider and the main body, a latch (20) moveable with the pin member, and an actuator; and a card tray (200) moveable together with the slider in the main body; wherein the actuator includes a bolt (16) slidably mounted in the main body, and the slider is moveable by the card tray to move the pin member and the latch against a biasing force to lock the latch to the bolt.

A data processing apparatus includes an electronic device configured to store data and instructions; a memory card; and a memory card socket in which the memory card is inserted. In certain disclosed systems and methods, the memory card socket includes: an insertion portion through which the memory card is inserted; a lock portion formed around an edge of the insertion portion, and that is configured to control attaching and detaching of the memory card based on instructions received from the electronic device; and a main body including the insertion portion and the lock portion and configured to accommodate the memory card via the insertion portion.

A memory card is provided with various pad layouts to prevent a data signal pad from contacting a power contact in a host during insertion and removal of the memory card. The memory card can have a form factor and features that accommodate a relatively-large memory with relatively-high performance and accompanying thermal conditions. An efficient card lock mechanism is also provided.

A memory card is provided with various pad layouts to prevent a data signal pad from contacting a power contact in a host during insertion and removal of the memory card. The memory card can have a form factor and features that accommodate a relatively-large memory with relatively-high performance and accompanying thermal conditions. An efficient card lock mechanism is also provided.