Sata 2 MOBO design with SATA 3 Hdd

Hello,
I want to use the main Hdd in a USB 3.0 with SATA 3, but the MOBO is designed with SATA 2. Also the USB 3.0 is an extension via external card via pci Express there's no USB 3.0 native in the MOBO. An AsRock H61M-HG4
It will fluid Ok, no lost of performance in this condition?
Thank you
Reply to rdtpoa
4 answers Last reply
More about sata mobo design sata hdd
  1. I think you're mixing connectors.

    Your SATA III drive is backwards-compatible with a SATA II port, it'll just be limited to the SATA II specification's maximum speed (3.0Gbps). So if you want to connect the HDD internally to the motherboard (i.e. with the HDD mounted inside the case), you'll want to use a SATA cable to connect it directly.

    The only reason to try to connect via USB (3.0, 2.0, or whatever type it can muster) is if you're planning on putting that HDD into an external drive enclosure. Now, if the enclosure uses a USB 3.0 port, you can still connect it to a USB 2.0 port, but you'll be limited to USB 2.0 speeds (280Mbps).


    As to which way you should go, it depends on what it's going to be used for. If you just want to use it as a drive for storing backup images, an external USB enclosure should be fine. If you want to use it as a secondary drive for your system (or especially if you want it to be the primary drive), I would connect it to the SATA port instead.
    Reply to spdragoo
  2. spdragoo said:
    I think you're mixing connectors.

    Your SATA III drive is backwards-compatible with a SATA II port, it'll just be limited to the SATA II specification's maximum speed (3.0Gbps). So if you want to connect the HDD internally to the motherboard (i.e. with the HDD mounted inside the case), you'll want to use a SATA cable to connect it directly.

    The only reason to try to connect via USB (3.0, 2.0, or whatever type it can muster) is if you're planning on putting that HDD into an external drive enclosure. Now, if the enclosure uses a USB 3.0 port, you can still connect it to a USB 2.0 port, but you'll be limited to USB 2.0 speeds (280Mbps).


    As to which way you should go, it depends on what it's going to be used for. If you just want to use it as a drive for storing backup images, an external USB enclosure should be fine. If you want to use it as a secondary drive for your system (or especially if you want it to be the primary drive), I would connect it to the SATA port instead.
    Reply to rdtpoa
  3. I want to use the main Hdd in a usb3.0 as an external hard drive and want to know if there is no problem as the MOBO there isn't no USB 3.0 native I have to use and pci card for this resource. I know SATA technology is retro compatible
    Thank you
    Reply to rdtpoa
  4. No, no problem whatsoever. USB 3.0 devices will work with USB 2.0 ports, they just run at the slower 2.0 speed. If you want, you can add a USB 3.0 card to your system as well.
    Reply to spdragoo
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