SSD to replace HD & I want to make sure I understand everything

I am planning to buy the, "Samsung 840 PRO Series MZ-7PD256 256GB,Internal,2.5" SSD" to replace my current SD where my OS sits. On the PCworld website it says, "If you're upgrading to an SSD on a desktop that has only a SATA 3-gbps interface, buy either a SATA 6-gbps controller card or ...." --elsewhere I read something similar. I think my MB doesn't need such a card The specs say,
"Intel® P55 chipset: 6 x SATA 3Gb/s port(s), blue Support Raid 0, 1, 5, 10
JMicron® JMB361 controller: 1 x eSATA 3Gb/s port(s), red
1 x UltraDMA 133/100/66 for up to 2 PATA devices , navy blue
Marvell® PCIe SATA 6Gb/s controller : *1
2 x SATA 6Gb/s port(s), gray
whereby the "*1" refers to, "These SATA ports are for data hard drives only. ATAPI devices are not supported."
Would I be correct in assuming therefore that I do not need a controller card? and all I have to do once purchased is connect the card (and figure out how to transfer my OS from my current HD to it)? Thank you

Yes, you are correct. You don't need to buy a controller card.

ignatzatsonic said:

Yes, you are correct. You don't need to buy a controller card.

Thank you very much. Now I feel more comfortable making the purchase.