Siemens 6ES7953-8LM20-0AA0 SIMATIC Micro Memory Card

Siemens 6ES7953-8LM20-0AA0 SIMATIC Micro Memory Card is a 4 MB MMC (micro memory card) designed for use with SIMATIC S7-300, C7, and ET 200 controllers. Sold as a spare part, this module provides removable storage for PLC programs and related data within the S7-300 family, aligning with Siemens' Micro Memory Card line that supports SIMATIC micro memory interfaces. The 4 MB capacity, combined with 3.3 V flash memory in this product family, offers a compact medium for transferring program data between compatible devices and storing backup configurations in industrial control systems. Intended for use in on-site automation hardware, the card is compatible with S7-300/C7/ET 200 configurations that rely on MMC memory cards for program storage and project data exchange. When precision, reliability, and a vendor-supported option are required in legacy PLC setups, this Siemens memory card provides a standard solution that integrates with existing SIMATIC hardware ecosystems.