Spare parts for the Productivity2000 PLC include 3-wire RS-485 connectors, I/O module terminal blocks (spring or clamp) and microSD cards.
Productivity2000 Micro-Modular PLC
For the price, the features you get with the Productivity2000 are unbeatable! Consider the memory, I/O, performance, options, free software, free support. ... This is the best value in industrial automation!