Ac infinity controller 69 pro

One of them is miss a back part see in picture does not affect the item. Asking 100 of them both or 60 for one.

CONTROLLER 69 PRO, Smart Climate Controller UIS 4-Port, with Temp Humidity VPD Sensor

digital controller designed to equip AC Infinity devices with smart controls to produce the optimal environment.
Control up to four devices from fans to grow lights and provide each with their own independent programming.
Automate devices to dynamically change speed and brightness levels in response to temperature, humidity, and VPD.
Additional programming includes grow cycles, scheduling, timers, minimum levels, and custom transitions.