CardBus adapters: USB 2.0 vs. SATA

[Knack]

External HDD project for a laptop.

The way I understand it, a nonSATA HDD such as an Ultra ATA 100 can be
installed in a SATA external HDD enclosure. True?

Comparing a CardBus USB 2.0 adapter to a CardBus SATA adapter for use with
an external ATA 100 HDD. Addonics makes both such CardBus adapters. I don't
yet own a CardBus SATA adapter.

The maximum data transfer rate of CardBus is far slower than either USB 2.0
or SATA. So isn't CardBus the bottleneck in the data stream? If so, then
why would Addonics make a more expensive CardBus adapter for SATA? And SATA
cable is more expensive than USB 2.0 cable.

What would be the reason to choose a Cardbus SATA adapter over a Cardbus USB
2.0 adapter?

 

[Rod Speed]

External HDD project for a laptop.

The way I understand it, a nonSATA HDD such as an Ultra ATA 100 can be
installed in a SATA external HDD enclosure. True?

Nope, the physical interface is completely different.

Comparing a CardBus USB 2.0 adapter to a CardBus SATA adapter for use with an
external ATA 100 HDD. Addonics makes both such CardBus adapters. I don't yet
own a CardBus SATA adapter.

The maximum data transfer rate of CardBus is far slower than either
USB 2.0 or SATA. So isn't CardBus the bottleneck in the data stream? If so,
then why would Addonics make a more expensive CardBus adapter
for SATA? And SATA cable is more expensive than USB 2.0 cable.

What would be the reason to choose a Cardbus SATA adapter over a Cardbus USB
2.0 adapter?

SATA has a lot less protocol overhead than USB 2
and the SATA external drive can be used on a desktop
that has SATA external capability as well as the craptop.

 

[Knack]

Nope, the physical interface is completely different.

Apparently it's been done, but perhaps not by consumers yet? Addonics tested
SATA on a Western Digital ATA100 120GB hard drive. See
http://www.addonics.com/emerging_technologies/sata_tutorial.asp

Did they use an available ATA to SATA interface adapter, or did they
construct their own special adapter for test purposes in their shop?

 

[Rod Speed]

Apparently it's been done,

Nope. One is serial and the other parallel for starters.

but perhaps not by consumers yet?

Not by anyone.

Addonics tested SATA on a Western Digital ATA100 120GB hard drive. See
http://www.addonics.com/emerging_technologies/sata_tutorial.asp

That is something else entirely. SATA to IDE converters
have been around ever since SATA was buyable.

Did they use an available ATA to SATA interface adapter, or did they
construct their own special adapter for test purposes in their shop?

Doesnt matter, that's nothing like putting an ATA drive into
a USB enclosure that is designed to take a SATA drive.

 

[Healthnut]

Nope. One is serial and the other parallel for starters.


Not by anyone.


That is something else entirely. SATA to IDE converters
have been around ever since SATA was buyable.


Doesnt matter, that's nothing like putting an ATA drive into
a USB enclosure that is designed to take a SATA drive.

You misundertood me. I'm comparing an ATA HDD within a USB2-to-ATA adapted
enclosure vs. an ATA HDD within a SATA-to-ATA enclosure (if there is such an
animal). The USB2 and SATA cables (respectively) would connect to
appropriate CardBus adapters.

 

[Rod Speed]

You misundertood me.
Nope.

I'm comparing an ATA HDD within a USB2-to-ATA adapted enclosure vs. an ATA HDD
within a SATA-to-ATA enclosure (if there is such an animal).

There isnt, like I said.

The USB2 and SATA cables (respectively)
would connect to appropriate CardBus adapters.

Pity about the price of the SATA route even if it was buyable.

If you do want to go the SATA route, get a SATA drive.

 

[J. Clarke]

There isnt, like I said.

Then what, exactly, is a Highpoint RocketMate 1100?

 

[Folkert Rienstra]

Nope.

Of course you do.

There isnt, like I said.

Of course there is, you silly bugger.

 

[Rod Speed]

Then what, exactly, is a Highpoint RocketMate 1100?

That's for RAID.

 

[Folkert Rienstra]

Nope, the physical interface is completely different.




SATA has a lot less protocol overhead than USB 2

Take that thumb out of your mouth child.

 

[Folkert Rienstra]

External HDD project for a laptop.

The way I understand it, a nonSATA HDD such as an Ultra ATA 100 can be
installed in a SATA external HDD enclosure. True?

Comparing a CardBus USB 2.0 adapter to a CardBus SATA adapter for use with
an external ATA 100 HDD. Addonics makes both such CardBus adapters. I don't
yet own a CardBus SATA adapter.

The maximum data transfer rate of CardBus is far slower than either USB 2.0
or SATA. So isn't CardBus the bottleneck in the data stream?

First make a conclusion then ask for a conclusion. Nice one.

If so, then why would Addonics make a more expensive CardBus adapter for SATA?

See earlier comment.

And SATA cable is more expensive than USB 2.0 cable.

What would be the reason to choose a Cardbus SATA adapter over a Cardbus USB
2.0 adapter?

Try something radical: speed?

 

[Rod Speed]

Then what, exactly, is a Highpoint RocketMate 1100?

A proprietary system, it isnt standard SATA

 

[bxf]

The maximum data transfer rate of CardBus is far slower than either USB 2.0

I'm not bothering to check the numbers, but this makes no sense, given
that there are a zillion CARDBUS USB2 adapters on the market, enabling
one to use USB2 devices at USB2 speeds.

 

[Edward W. Thompson]

I'm not bothering to check the numbers, but this makes no sense, given
that there are a zillion CARDBUS USB2 adapters on the market, enabling
one to use USB2 devices at USB2 speeds.

I don't know what you mean by USB2 speeds but you won't get the
advertised USB2 speed or anything like it through a Cardbus.

 

[craigm]

I don't know what you mean by USB2 speeds but you won't get the
advertised USB2 speed or anything like it through a Cardbus.

If cardbus is rated at 132 MB/sec and USB 2 is at 480 Mb/sec (
60MB/sec), why can't you get the advertised USB 2 spped?

Link to cardbus info
http://www.pcmcia.org/papers/new_bus.htm

 

[Eric Gisin]

****ing moron. Cardbus is PCI, it is much faster than USB2.

 

[McSpreader]

I don't know what you mean by USB2 speeds but you won't get the
advertised USB2 speed or anything like it through a Cardbus.

The Card Bus interface is rated at 132 MBps, whereas USB2 is 480 Mbps
~ 60 Mbps. Ignoring protocol overheads that makes it around twice the
speed.

Your statement needs clarification because it doesn't make sense as
it stands.