WORM (Write Once Read Many) SD and Micro SD cards by Nexus Industrial Memory are secure storage devices designed for permanent data storage where files, once written, cannot be altered, erased, or modified. The WORM SD serves as a modern replacement for legacy storage mediums like CD-R/DVD-R disks, optical disks, zip disks, and WORM tapes. The system is particularly suited for medical records management and applications requiring permanent, unalterable data storage. The cards can be used in conjunction with a Multifunctional Card Holder supporting USB 3.1 and USB Type C interfaces.