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Sharkoon Introduces 3.5-inch SATA Enclosure with USB 3.0 Interface

btarunr

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T

Taskforce

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#2
About time we started seeing some 3.0 enclosures, but why does it need to have power adapter and it's only using 3.0, i though 3.0 send enough power, and i would like to see 3.0 and eSATA combo cause eSATA is still the fastest.
 
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#3
It's a 3.5" (desktop/server) HDD, so it uses slightly more power. Most 3.5" enclosures use a seperate power source.

You might be thinking of 2.5" laptop HDDs, which require one or two USB connections.
 
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#4
About time we started seeing some 3.0 enclosures, but why does it need to have power adapter and it's only using 3.0, i though 3.0 send enough power, and i would like to see 3.0 and eSATA combo cause eSATA is still the fastest.
It's a 3.5" (desktop/server) HDD, so it uses slightly more power. Most 3.5" enclosures use a seperate power source.

You might be thinking of 2.5" laptop HDDs, which require one or two USB connections.
That just got me asking the question if USB 3.0 has a higher power supply limit than USB 2.0. USB 2.0 typically peaks out at 5watts.
 
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#5
It's a 3.5" (desktop/server) HDD, so it uses slightly more power. Most 3.5" enclosures use a seperate power source.

You might be thinking of 2.5" laptop HDDs, which require one or two USB connections.
It's rumored USB 3.0 can send much more power than 2.0 eliminating the need to have external power source on many devices including 3.5" external hard drives.

"So i heard"
 
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#6
Does it have SATA III, though? It should for true future-proofing.

As far as the adapter (wallwart or brick), it is necessary, as USB does not provide the 12v (typically yellow wire) that 3.5's need.
 

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#7
About time we started seeing some 3.0 enclosures, but why does it need to have power adapter and it's only using 3.0, i though 3.0 send enough power, and i would like to see 3.0 and eSATA combo cause eSATA is still the fastest.
I'm sure it can send the WATTS needed but 3.5" drives run on 12v and USB 3.0 puts out 5v. that is why laptop drives can run on USB only and why 3.5" drives need a power brick.
 
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#8
USB 2.0: 500mA, 5V, 2.5 watts
USB 3.0: 900mA, 5V, 4.5 watts

Also, 3.5'' HDD motors have very high start-up current requirements, they draw around ONE amp from the 5V line and around TWO amps from the 12V line for 3-6 seconds.
 

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#9
USB will never power 3.5" hard drives, because they run on 12V, and USB gives out 5V

also, HDD's dont use much power to start up. they use about 15-18W to power on, the idle in the 8-12W range depending on the model. I've got a wall meter and tested many of them in an external enclosure.
 
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#10
the lower the watt's go, lower the accurency for wall meter is :roll:
and "some" to all hard drive use to power peak when they spin up, thats why most PSU don't like massive HDD arrays :), i don't know why exactly but translatory inertia eats power .
( oh god i loved my 4x320GB IDE back the day, 350W PSU :laugh: )
best low power 3,5 HDs ive seen are the WD Green EADS line, taking 3-4W under idle/free spin, spindown is 1.2W and load only bumps to 5,6W


but hey time to upgrade my IDE!! IDE Usb 2.0 external Drive to USB 3.0 :D
 
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#11
the lower the watt's go, lower the accurency for wall meter is :roll:

best low power 3,5 HDs ive seen are the WD Green EADS line, taking 3-4W under idle/free spin, spindown is 1.2W and load only bumps to 5,6W


but hey time to upgrade my IDE!! IDE Usb 2.0 external Drive to USB 3.0 :D
mines accurate. its not some cheap crappy unit. i also have a cage with 5 HDD's in it, and powering it up and dividing by 5 gives me pretty much the same numbers.

WD greens may be low power, but they're as slow as a 2.5" drive.
 

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#12
It is possible to have an enclosure with both e-SATA III and usb3.0 together? I never see any enclosure support both interface.
 

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#13
It is possible to have an enclosure with both e-SATA III and usb3.0 together? I never see any enclosure support both interface.
possible yes, but more expensive. USB 3.0 is easier to sell than a combo enclosure for $20 more.
 
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#14
USB will never power 3.5" hard drives, because they run on 12V, and USB gives out 5V

also, HDD's dont use much power to start up. they use about 15-18W to power on, the idle in the 8-12W range depending on the model. I've got a wall meter and tested many of them in an external enclosure.
It's completely possible to boost 5V to 12V as long as you can provide enough current. How do you think single AA white LED flashlights work?

Wall meters are useless in this case because they update too slowly as shown here.
 

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#15
It's completely possible to boost 5V to 12V as long as you can provide enough current. How do you think single AA white LED flashlights work?

Wall meters are useless in this case because they update too slowly as shown here.
boost? yes. in an expensive, heat producing way that no one will bother with.

interesting read on the hard drives power usage, but its not like i'm measuring at the back of the drive. i'm getting average results - and average power draw is what matters most.
 
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#16
boost? yes. in an expensive, heat producing way that no one will bother with.

interesting read on the hard drives power usage, but its not like i'm measuring at the back of the drive. i'm getting average results - and average power draw is what matters most.
No. the peak current draw of a starting motor is the minimum requirement. the power source must be able to cope with that sudden high current draw.
 

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#17
No. the peak current draw of a starting motor is the minimum requirement. the power source must be able to cope with that sudden high current draw.
for all of what, a tenth of a second? nothings going to pop from that quick a power draw.
 
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#19
Has anyone ever tried this product? I'm looking for a 3.5 "enclosure for my unused hard disk. I once read a review on this product here.. The result is pretty good.. But before deciding to buy it, I want opinions from people who've tried it directly..

Thanks.. :)