Multiple drive on single sata port

sata port multipliers is what you're asking about.
they are pretty thoroughly discussed throughout here.
 
yes and no. Port multiplicators are not quite cheap, they'll slow your drives down and you have to double-check compatibility.
Forget about it when using Solaris or BSD, anyway.

Been there, done that - never again. Rather spend that money on a cheap 8-port SATA-Controller in the future.
 
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