Siemens Simatic S5 memory submodule, specifically model number 6ES5 375-1LA21. Other variations such as 6ES5 375-1LA41 and 6ES5 375-1LA61 are also available.
Shopping information for this product:
It is a memory module used in industrial automation and motion control systems, particularly with Siemens Simatic S5 PLCs.
The product is typically available in new, used, or reconditioned condition from various industrial equipment suppliers and online marketplaces like
It is described as an 8-bit, 16 KB (or 32 KB depending on the exact variant) CMOS EPROM (Erasable Programmable Read-Only Memory).