9024 Questions

I am searching for a device in which three communication fibers, coming from three different computers, could be connected as Input (only one of the three computers is switch on, at once). Out of such a device, another communication fiber should be connected as Output which send the data to another common PC. Please, could you tell me which device we need and if you have it?
I am interested in fiber cluster 9024-4 (1-4). What is the maximum loss (multi-mode)?