Owl
Can I use the hard drive without a power adaptor?
How much rpm does it have?
Answer
No, this model (and any model I've seen this size) will not get enough power from a USB port, it must use the AC adapter to operate (there are smaller, say 500GB drives that do operate off USB power, although some of them even require a split cable that plugs into two USB ports at the same time to get enough amperage). As for spindle speed, it seems irrelevant, as I could not find it listed on Western Digital's specs page, which you can find here:
http://www.wdc.com/en/products/products.aspx?id=870
If you have a computer whose motherboard supports USB 3.0 you will get UP TO 5 Gigabits per second transfer rates, and at 2.0 speeds (3.0 is backwardly compatible with 2.0 ports) UP TO 480 Megabit/sec.
Many externals run at 5400 or 5900 rpm (whereas many internals are system drives and run faster at 7200 rpm or souped-up can be 10,000 rpm). But isn't transfer speed what's important? - as long as the drive can keep up with the given USB architecture, what does it matter what spindle speed? Hope this helps...
No, this model (and any model I've seen this size) will not get enough power from a USB port, it must use the AC adapter to operate (there are smaller, say 500GB drives that do operate off USB power, although some of them even require a split cable that plugs into two USB ports at the same time to get enough amperage). As for spindle speed, it seems irrelevant, as I could not find it listed on Western Digital's specs page, which you can find here:
http://www.wdc.com/en/products/products.aspx?id=870
If you have a computer whose motherboard supports USB 3.0 you will get UP TO 5 Gigabits per second transfer rates, and at 2.0 speeds (3.0 is backwardly compatible with 2.0 ports) UP TO 480 Megabit/sec.
Many externals run at 5400 or 5900 rpm (whereas many internals are system drives and run faster at 7200 rpm or souped-up can be 10,000 rpm). But isn't transfer speed what's important? - as long as the drive can keep up with the given USB architecture, what does it matter what spindle speed? Hope this helps...
will a usb 3.0 external hard drive work with a usb 2.0 port?
Dj Dood
I am looking to purchase a external hard drive but the ones I want to choose from say they are usb 3.0. If I buy one will it work with usb 2.0 ports two?
Answer
yes all external drives are what is called backwards compatible, so if you plug a 3.0 into a 2.0 socket, the drive in effect pretends to be a 2.0 drive, you also only get the 2.0 speed so dont expect the lightning fast you could get. Why not invest in a 3.0 pcie card and take the benefits.
yes all external drives are what is called backwards compatible, so if you plug a 3.0 into a 2.0 socket, the drive in effect pretends to be a 2.0 drive, you also only get the 2.0 speed so dont expect the lightning fast you could get. Why not invest in a 3.0 pcie card and take the benefits.
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