Notice on the replacement of the old WHB04-L with the new WHB04B-4/-6

Dear new and old customers：

Thank you for your long-term support，Because the chip supplier stopped production，The old MACH3 wireless electronic handwheel WHB04-L is discontinued，Will be replaced by the new MACH3 wireless electronic handwheel WHB04B-4/-6,More stable performance，

Support more axes，The following is a comparison chart：