[Stupid Question] RAID = 2 SATA's, PSU = 1 SATA connector??

[cgcaver]

OK, I know this is a stupid question but I must ask because I've never set up my own RAID before...

Every power supply I've seen for sale has 1 SATA HDD power connector.

So how do ppl RAID 2x SATA HDD's when power supplies only have 1 SATA connector?

 

[pickxx]

they make connectors for 2bucks that will make a regular power dongle into a SATA one....
They also make daisychain ones so you can hook up like 5 drives to one rail and also they make daisychain connectors...so you have have 4-5 drives on one SATA port.