Digital card-reader and hub

A method comprising:

• determining a value of an insertion force of a memory card;
• forming a compliant-region mat and a magnetic material in proximity to the compliant-region mat on a face of a digital-card reader;
• determining a value of coefficient of friction between the digital-card reader and the value of insertion force of the memory card for a selected surface to which the face of the digital-card reader is to be mounted magnetically;
• and
• selecting a durometer value of the compliant-region mat.

A reader hub, comprising:

• a magnetic material coupled to at least one face of the reader hub;
• a compliant-region mat coupled to the at least one face of the reader hub and positioned proximate to the magnetic material, a combination of the magnetic material and the compliant-region mat being configured such that the magnetic material is to compress the compliant-region mat to increase friction against a mounting surface so as to at least partially overcome insertion forces associated with inserting a memory card into one or more of a plurality of digital-card readers mounted within the reader hub, thereby reducing or eliminating lateral movement of the reader hub with reference to the mounting surface;
• and
• a plurality of openings configured to accept a corresponding number of the plurality of the digital-card readers.

A digital-card reader, comprising:

• a card-reader frame having a circuit board including at least one memory-card reader configured to perform data transfer operations including at least one operation of reading from a memory card and writing to the memory card;
• a magnetic material coupled to at least one face of the card-reader frame;
• and
• a compliant-region mat coupled to the at least one face of the card-reader frame and positioned proximate to the magnetic material, the compliant-region mat having a thickness greater than a thickness of the magnetic material, a combination of the magnetic material and the compliant-region mat being configured such that the magnetic material is to compress the compliant-region mat to increase friction against a mounting surface so as to at least partially overcome insertion forces associated with inserting the memory card into the digital-card reader, thereby reducing or eliminating lateral movement of the digital-card reader with reference to the mounting surface.