1、Applicable Model: RV refrigerator power circuit board is replacement for Norcold N61X N81X N610 N611 N810 N811. Please confirm whether it is consistent with the product you need. 2、OE Number: The part numbers for reference are 621991, 621991001. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3、Sturdy Material: RV refrigerator power circuit module board is made of sturdy and reliable material, high strength and wear resistant, having long service time. 4、Improved Performance: Effectively sustains and improves your refrigerator's performance, making it a crucial component for your RV's refrigerator system. 5、Easy to Install: The RV refrigerator power supply circuit board has a simple installation, convenient and time saving, don't need too much tools or complicated steps.