A bout this item. You will always get the exact item listed in the pictures, unless there are multiple items of the same listed. This is a Used Nordyne 1/2 HP ECM Blower Motor 621859-A 5SNE39HL0395. 1050 RPM CWSE 120/240V. Removed from an upgraded system and in perfect working condition. Testing ECM motors that are not fully installed will cause the motor to ramp up and down in RPM. Variable Drive Certified by Trane. I have 25 years in the HVAC industry as a service technician working mainly with residential heating and cooling systems here in Florida. Straight Cool systems, Heat pumps, Ductless Mini-Splits, PTAC Units, Package Units, Roof Top Commercial, Geo Thermal, Variable Drive systems, and more. Have any questions, please ask and thanks for stopping by.