They look kinda different i am not sure if i want to get one that does not match. Already lost 4 of them. 2 for no good reason. MKS GEN 1.0 started to smell while i was flashing it and 2 stepper controllers died as a result. 2 other died when i mixed up wires trying different motor. https://www.amazon.com/Longruner-LK...6HST/ref=cm_cr_arp_d_product_top?ie=UTF8&th=1 I am not really sure why LKB02 in this listing is $70 What am i chasing here, brand name or the model ? Longruner is the brand here i guess. Thanks !