Feature: This product is suitable for SIMATIC S7-200. For long-term backup data, can be inserted into the S7-22X CPU memory submodule slot. The memory battery inside the PLC is empty, so it is recommended to replace it to protect the program from loss. Product performance is reliable. Light weight, easy to use. Specification: Model: 6ES7291-8BA20-OXAO Weight: 5g / 0.2oz Working temperature: -30-70 Suitable: for SIMATIC S7-200 Package list: 1 x Memory Battery Card Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.