First of all they have less io pins count them yourself. Secondly they sold me these Customize Pis for 20-25 USDs. I bought them because i have a small to medium sized farm of baikals so these extra components helps in any emergency.I dont need down time.
"Non-customized Orange PI Zero has one row 13 I/O pins. How many You count on Zeros inside Baikal miner?