[Problem] To provide an information storage device 1 that does not cause disconnection even when repeatedly bent. [Solution] An information storage device 1 is provided with a lowest-layer substrate 30b and a conductive circuit 18A on the lowest-layer substrate 30b. The lowest-layer substrate 30b has a first substrate 91 and a second substrate 92, and a first conductive circuit 93 of the first substrate 91 and a second conductive circuit 94 of the second substrate 92 are connected by a flexible circuit connector 80 provided astride a bending line 64. The flexible circuit connector 80 has an insulating substrate 81, a one-side terminal 83 provided on one side of the insulating substrate 81, and an other-side terminal 84 provided on the other side.
