Choosing proper external 2.5mm disk case

[Markko]

I am going to buy a proper case to make my internal notebook HDD reliable (in terms of power supply) external disk with fastest possible transfers.

I have:
- Dell E6230 notebook with SATA 3, eSATA-USB 2.0 combo, 2x USB 3.0; at least one USB 3.0 port provides current of at least 1A
- 320 GB 7200 rpm 2.5mm drive I've taken out and replaced with Samsung Evo 850 SSD

I want to know:
- whether the interface (eSATA, USB 2.0/3.0) in the case does matter if I expect:
a) reliable power supply
b) fastest possible speeds for that 320 GB disk (keep in mind: 7200 rpm HDD)
- whether I should opt for the case that is, for example, equipped with some dampening pads or anything you suggest?

Thanks in advance. Regards,
Marek

 

[frantic6]

By 2.5mm, I assume you mean 2.5 inch?

The best option would a USB 3.0 enclosure, as it has much higher transfer speeds and supplies more power than USB 2.0 and will support a 7200 rpm drive as long as it is connected to a USB 3.0 port, a USB 2.0 port will not supply enough power.

Its predecessor, USB 2.0, will not supply enough power to power the drive, although some external enclosures come with a cable with two USB plugs for more power. You will also get slower speeds.

eSATA isn't a great option for a portable drive as it does not supply power and will require an external power supply or possibly another USB for power only.

As for dampening pads, they may be useful if you are experience a lot of vibration and noise, especially due to the higher rpm, however it is most likely not necessary. If you were to get a lot of vibration you could easily make your own dampening pads with some pieces of foam or rubber.

Hope this helps.

 

[Markko]

Thank you, frantic6, that helps a lot. Of course, 2.5mm was a typo. I've decided to go USB 3.0 way, I want the disk to remain mobile and not require external power supplier.