Handheld mobile communication device having a plugging expansion memory

A handheld mobile communication device having a plugging expansion memory, comprising:

• a plugging memory module which is connected to the handheld mobile communication device by plugging to provide a storage space to perform data access operation with the handheld mobile communication device;
• a storage interface module which has a first connection interface specification to provide a first transmission interface to perform the data access operation;
• a transmission interface module which has a second connection interface specification differed from the first connection interface specification to provide a second transmission interface to perform the data access operation;
• a memory connection control module which is connected to the storage interface module and the transmission interface module to drive and control the plugging memory module to perform the data access operation;
• and
• an internal memory module which is located in the handheld mobile communication device and connected to the plugging memory module through the memory connection control module to increase data storage capacity of the internal memory module.