A memory card (100) includes a main body portion (1) and a rotatable portion (2) connected by a pair of hinges (3) to rotate around an axis extending across a width of the memory card. A conductive member (12) includes a base (121) retained in the main body portion (1) to form a SD card interface and an extension (122) extending beyond the main body portion to form a USB plug interface. The rotatable portion has a slot (2117) and a slider (22) movably received in the slot. The slider (22) includes a locking projection (2215) holding a distal end (123) of the extension at a closed position and sliding away the distal end to expose the second interface at an opened position.