Model MR-C20A UPC Does not apply Brand Unbranded MPN MR-C20A. Your Best Online Business Partner. If your item is defective after 30 days, you can still send it back to us. We will send you a replacement after receiving the defective item. 1PC DC-DC LM2596 power Supply Buck Converter step-down module.This item is in the category "Business & Industrial\Industrial Automation & Motion Controls\PLCs & HMIs\PLC Processors". The seller is "plc-explorer" and is located in this country: CN. This item can be shipped worldwide.