Flexxon Read-Only Mode SD and microSD Card keeps the data unalterable. Keep your crucial data in a tamper-proof storage solution with Flexxon Read-Only Mode Memory Card. It is highly effective to ensure the utmost data security in a memory device. Once you activate the Read-Only Mode into the memory card, all the stored data enables access for reading only. No one can change, delete, or overwrite anything so you can preserve the authenticity of the essential files in the memory card.