Motherboard GA-M68MT-S2 SATA 3?

has the gigabyte motherboard GA-M68MT-S2 got SATA 3?

Nahh, but unless your using ssds that support sata 3, you dont need it yet.

so your saying this HDD wont work

It will work.

sata drives are backwards compatible, and forwards as well, i think.

You are correct :P

i dont understand?

It will work but it will be at SATA 2 speeds, which for a HDD it won't really affect performance.

im recording 720p 1080p videos? onto this dedicated HDD