Originally Posted by Thomas Porfert

They are the exact same speed controller, save for the label on the bottom. The difference is with the motor they are being packaged with. The Sidewinder SCT comes with the 1410/1Y 3800kv 4-pole motor. The Sidewinder V2 is currently being packaged with the 2-pole 36mm motors (4600, 5700, 6900 and 7700kv).

Thomas Porfert
Tech Support
Castle Creations