The new HDD I'm looking at is a Seagate 7200.12 ST3500418AS, which the store assistant told me is a SATA-II. However, the Seagate website labels both as SATA only. I'm afraid that I'll buy a HDD which is incompatible with my system, especially since I'm going to install Windows 7 on it and I previously had the problem of Windows (Vista) setup ...

Feb 1, 2013 · "Second generation SATA interfaces run with a native transfer rate of 3.0 Gbit/s, and taking 8b/10b encoding into account, the maximum uncoded transfer rate is 2.4 Gbit/s (300 MB/s)." If you put that SSD on SATA II you should expect +/- 300MB/s.

Both SATA-II connectors are backwards compatible with SATA-I, so it's OK to use a SATA-I drive on a SATA-II board and vice versa. The primary difference is the speed of the connection - SATA-II operates at 3.0 Gbps, whereas SATA-I operates at half that, or 1.5 Gbps.

Sep 15, 2016 · SATA 1, aka SATA 1.5GB/sec SATA 2, aka SATA 3.0GB/sec SATA 3, aka SATA 6.0GB/sec In theory all devices are compatible. A SATA-2 drive on a SATA-1 controller should just work, albeit at a maximum transfer speed of about 130MB/sec. ( SATA-1 speed, and compensating for the overhead in the protocol and the encoding).

As you can see, none of the drives exceeds 200 MB/s with the SATA II interface; not even the Samsung 830 and OCZ Vertex 3 (SF-22XX), which pass 300 and 350 MB/s with the SATA III interface. Furthermore, consumer-level SSDs could be much faster than even SATA III: For example, the PCIe SSD OCZ RevoDrive 3 has a maximum reading speed of 975 MB/s.

Dec 14, 2015 · SATA III devices are backwards-compatible with SATA II. You can plug any SATA III device into a SATA II port. Note that you will experience a reduction in (theoretical) performance, as SATA II is an older, slower standard (3 Gb/s as opposed to SATA III's 6 Gb/s).

Mar 12, 2020 · In rough terms, SATA I is 1.5Gb/s, SATA II is 3Gb/s & SATA III is 6Gb/s. An SSD may shift data at 5Gb/s peak, so you're missing out on the ultimate performance, but an HD is going to only be moving at maybe 1.5Gb/s anyway.

May 29, 2015 · So it doesn't matter whether it is a SATA 1 controller with a SATA 3 drive or a SATA 3 controller with a SATA 1 drive, or any combination with SATA 2 as well, they should all work together just fine. The only exception in my experience is that some older SATA drives require a 3.3 volt supply, while most drives work fine without it.

Here is a simple table which shows how the mixing of SATA II and SATA III devices at the same bus results: SATA 2 + SATA 3 = SATA 2. SATA 3 + SATA 2 = SATA 2. SATA 3 + SATA 3 = SATA 3. So does it have a sense to install SATA 3 SSD on SATA 2 notebook? A bit broad questions because it depends on circumstances.

Apr 24, 2014 · Called external SATA or eSATA, customers can now utilize shielded cable lengths up to 2 meters outside the PC to take advantage of the benefits the SATA interface brings to storage. SATA is now out of the box as an external standard, with specifically defined cables, connectors, and signal requirements released as new standards in mid-2004 ...