Part Number / MLFB: 6ES7 153-2BA00-0XB0. Part Number / MLFB 6ES7 153-2BA00-0XB0. Size (W × H × D): ~40 × 125 × 117 mm (typical for SIMATIC ET/IM 153 modules). This interface module sits in the ET 200M rack and acts as a Profibus DP Slave for an S7 PLC (e.g., S7-300 or S7-400).
eBay