Hard Disk Drive (2.5") speed: SATA vs. USB 2.0 vs. USB 3.0

Jadi ceritanya beberapa bulan yang lalu saya browsing cari-cari tentang perbandingan kecepatan harddisk yang mirip atau yang sama kalo dicolok ke port SATA, ke USB 2.0 dan ke USB 3.0, dan sayangnya saya ga bisa nemuin hasil yang memuaskan. Jadi sekarang setelah saya punya case/dock harddisk USB 3.0, apa salahnya berbagi info hasil benchmarknya? Berikut perangkat yang saya gunakan:

So, a few months ago I've been looking for comparison speed of HDD speed when it's plugged into SATA, to USB 2.0 and to USB 3.0 of identical or same disk, and surprisingly I did not find any information that satisfy myself. So, after I bought a HDD case/dock that come with USB 3.0 device, I post this benchmark result so, maybe someone looking for this too. For the rig setup, I use:

Berikut perangkat yang saya gunakan:
- Biostar H81MLV3 (2x USB 2.0, 2x USB 3.0, 2x SATA II, 2x SATA III),
- Western Digital Scorpio Blue WD3200BEVT (320GB, 8MB, SATA II, 5400 RPM),
- Orico USB 3.0 Hard disk case.
- Windows 10 1511 64-bit

Test 1:

Dicolok langsung ke port SATA II. (Plugged straight into SATA II port)

HDD -> SATA

Test 2:

Dicolok via HDD case ke port USB 3.0. (Plugged to USB 3.0 port with HDD case)

HDD -> Case/Dock -> USB 3.0

Test 3:

Dicolok via HDD case ke port USB 2.0. (Plugged to USB 2.0 port with HDD case)

HDD -> Case/Dock -> USB 2.0

Seperti yang kita lihat, USB 3.0 hampir bisa mencapai kecepatan dari SATA II, keduanya kecepatan baca & tulisnya sekitar 90 MBps, tapi di USB 2.0 kecepatannya cuma sepertiganya di sekitar 30 MBps. Walaupun sepertinya di USB 3.0 kecepatan baca-tulis file kecil 4K sedikit lebih rendah dari lainnya.

Ya, sekian dulu, semoga bermanfaat.

As you can see, USB 3.0 can almost achieve same performance with SATA II, with both read & write sequential speed around 90 MB/s but USB 2.0 only a third of it, around 30 MB/s. But USB 3.0 have somewhat lower random 4K read/write test.

Okay, hope you could find this useful.