Memory system

A memory system comprising:

• a memory area configured to store data therein;
• a controller configured to control writing data to be input to and/or reading data to be output from the memory area;
• a first connector configured to input the data to be input to the memory area from a host and/or output the data to be output from the memory area to the host, the first connector being removable from the host;
• and
• a first holding part electrically disconnected from the memory area and the first connector and including a first port, the first holding part being configured to hold identification information used to authenticate an authority to initialize the memory area and the first port being configured to output the identification information to the host when receiving, from the host, an initialization command that instructs initialization of at least the part of the memory area;
• the controller including:
• a second port configured to receive the initialization command from the host and receive the identification information via the first port;
• and
• an authentication part configured to execute initialization of at least the part of the memory area based on the initialization command and the identification information received at the second port.