SATA III HDD WITH SATA II cable, what port should i take

i just got a seagate 2tb hdd SATA 3 and a sata 2 cable, in which port should i plug it and is sata3 faster?
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More about sata iii hdd sata cable port
  1. First Yes sata iii (3) is twice the speed of sata 2,Second And hdd and sdd are backward compatabilty So if you insert sata 2 on sata 3 hdd or sdd and inserted it in a sata 2 port it will work fine but slow than it should (since you need sata 3 cable for high speed)
  2. fawzy_family said:
    First Yes sata iii (3) is twice the speed of sata 2,Second And hdd and sdd are backward compatabilty So if you insert sata 2 on sata 3 hdd or sdd and inserted it in a sata 2 port it will work fine but slow than it should (since you need sata 3 cable for high speed)

    but hdd's dont gain from sata3 compared to sata 2 right?
  3. All sata cables are the same. There is no such thing as a sata 3 cable. SATA is backward compatable so plugging a sata 3 drive into a sata 2 port/controller will work fine. The drive's throughput will just be at the lower speed.

    Also, most hard drives can't saturate a sata 2 connection, so you probably wouldn't notice much if any difference.
  4. As to (external)Seagate.hdd, i knew all have the nice USM(ie. eHDD:external_HDD equips with an u3cbl:USB3_cable to link PC/NB...etc.), wondering if we can bypass the "u3cbl", directly connect eHDD to PC/NB SATA port via any (22pin)SATA extension cable? TIA.
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