Question How Many Times Can You Split Storage Connections Until the Connectors Bottleneck?

[Gamefreaknet]

(I know this is going to sound weird) however there are splitters that can split a SATA 6Gbps into 2 SATA 6Gbps (and I assume its also likely such things exist for M.2. drives) however I also know that there's only so far you can go splitting one connection before there are too many drives for that one SATA 6Gbps/3Gbps (or M.2.) data line becomes overstressed from the amount of drives connected to it.
Theoretically how many SATAs can a single SATA 6Gbps data line handle effectively? (Yes I know it's designed for just 1 SATA to be connected however it's unlikely all SATAs or M.2.s will be being used simultaneously)

 

[kanewolf]

(I know this is going to sound weird) however there are splitters that can split a SATA 6Gbps into 2 SATA 6Gbps (and I assume its also likely such things exist for M.2. drives) however I also know that there's only so far you can go splitting one connection before there are too many drives for that one SATA 6Gbps/3Gbps (or M.2.) data line becomes overstressed from the amount of drives connected to it.
Theoretically how many SATAs can a single SATA 6Gbps data line handle effectively? (Yes I know it's designed for just 1 SATA to be connected however it's unlikely all SATAs or M.2.s will be being used simultaneously)

SATA power can be split. SATA data can not.