How much will the speed of the hard drive drop when connected to SATA 2?

Question

Hard disks

Hello.

There are only 2 sata3 6gbs connectors on the motherboard.

If you connect a wd blue 1tb disk to sata2 3gbs, will the read / write speed drop significantly.

The manufacturer claims a speed of 150 Mbps per disk. Tests show up to 200 mbs.

In any case, this is below the capabilities of sata2 - there is 300 mbs Do

not offer to buy a pci sata controller for more than 700 rubles!

Answer 1

Yes, you won't notice the difference at all.

Answer 2

It won't change at all.
Even in sequential operations, mechanical drives are far from the limits of SATA II. And as soon as random read / write tasks appear, then the limits of SATA I will be very far and extremely redundant.