it is an old speedo. actually one of their first if not their first brushless speedos. it was top of the line for it's time. I think that would be like 5 years or so. I purchased one of the first ones available and it has served me well. I still run it in my Speedmerchant Rev5. by the way I usually TQ and finish first at club races every weekend. Also ran the thing at this years iic. it does not have the lipo cut off and does not have the power profile stting the new speedo's have. you may be able to get a 1/10 or 2 with a newer speedo.