Mach3 USB Smooth Stepper break out board controller vs cheap red or blue card difference

I bought this smooth stepper card on Amazon for $25. I wish there was some real specs on what a smooth stepper card does. I'm guessing the two processors can emulate more input and outputs. I hoping it can offload some the load off the computer. The little info I can find so a smoother step train pulse. Smooth Stepper Board on Amazon https://www.amazon.com/gp/product/B07KXW7BDQ/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1 Preferred Cheap Card on Amazon https://www.amazon.com/gp/product/B07XH1ZPJN/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07XH1ZPJN&linkId=ca68e9e0e2fcb65bab13d21cd7298704 If you found this video helpful or would like help fund future experiments. please donate below. Patreon http://www.patreon.com/fintechrepairshop Paypal http://www.paypal.me/fintechrepairshop Sponsors: http://www.oc3dtech.com/ http://cinderclaus.com/ http://www.fintechcommunications.com/ http://www.ocdatacabling.com/ http://www.ocdatasystems.com/ http://www.bloodlinefishing.com/