The Siemens 6ES7953-8LL31-0AA0 is a high-performance Micro Memory Card designed for the SIMATIC S7 series. This compact and reliable memory solution, with a capacity of 2 MB, is perfect for use with S7-300/C7/ET 200 systems. The card operates on a 3.3V Nflash and is built with Flash-EPROM technology, ensuring fast and efficient data storage and retrieval. With a minimum of 100,000 write/delete operations and a data retention period of at least 10 years after the final programming action, this memory card offers longevity and durability. Its small dimensions (24mm width, 32mm height, and 1.4mm depth) and light weight (approximately 2g) make it easy to install and use. The Siemens 6ES7953-8LL31-0AA0 Micro Memory Card is an excellent choice for enhancing the memory capabilities of your Siemens automation systems.