General Question about External Drives

[gary]

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

USB 1.x - Max Transfer = 12Mbps
USB 2.0 - Max Transfer = 480Mbps


Using a USB 2.0 EXTERNAL Western Digital (7200RPM), with similar specs to
the internal drive, how much slower is it if you were to connect it to a USB
1.1, for example?

 

[Guest]

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

Previously Gary <GParent@rocketmail.com> wrote:
> USB 1.x - Max Transfer = 12Mbps
> USB 2.0 - Max Transfer = 480Mbps


> Using a USB 2.0 EXTERNAL Western Digital (7200RPM), with similar specs to
> the internal drive, how much slower is it if you were to connect it to a USB
> 1.1, for example?

Real transfer numbers from my experience: 1.x: about 1MB/sec,
2.0: 15MB/s. Internal, properly configured, non-raided, mostly linear
access: 20-50MB/s, depending on the model.

Arno
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[Guest]

Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)

Gary <GParent@rocketmail.com> wrote in message
news:O7Cxd.5868$EL5.4743@trndny09...

> USB 1.x - Max Transfer = 12Mbps
> USB 2.0 - Max Transfer = 480Mbps

> Using a USB 2.0 EXTERNAL Western Digital (7200RPM),
> with similar specs to the internal drive, how much slower
> is it if you were to connect it to a USB 1.1, for example?

The short story is painfully slow.