6ES7321-1BH02-0AA0 Siemens | Siemens Digital Input Expansion Module for use with SIMATIC S7-300 Series, 125 x 40 x 120 mm, Digital, SIMATIC S7-300 | 453-2517 | RS Components
Phoenix Contact 2299770, FLKM 14-PA-S300, Front adapters | Airline Hydraulics