Maximum External Data Transfer Rate 640 MBps (5 Gbps)
extracted from:
Buffalo 1TB DriveStation Velocity USB 3.0 External HDD Hardware Encryption
Is this external transfer speed the equivalent to one uncompressed music CD in 1 second?
Can we expect to achieve maximum or near maximum speed in actual operation?
What are reasonable expectations for transfer speeds for USB 2.0 & USB 3.0?
extracted from:
Buffalo 1TB DriveStation Velocity USB 3.0 External HDD Hardware Encryption
Is this external transfer speed the equivalent to one uncompressed music CD in 1 second?
Can we expect to achieve maximum or near maximum speed in actual operation?
What are reasonable expectations for transfer speeds for USB 2.0 & USB 3.0?
Sorry, yes you´re right, it is really bytes, USB 2.0 is about 60MB/s.
So yes this would be equivalent to one uncompressed music CD in 1 second.
I have not used USB 3.0 myself yet, but Wikipedia says that "...this speed is typically only achieved using powerful professional grade or developmental equipment."
USB - Wikipedia, the free encyclopedia
So yes this would be equivalent to one uncompressed music CD in 1 second.
I have not used USB 3.0 myself yet, but Wikipedia says that "...this speed is typically only achieved using powerful professional grade or developmental equipment."
USB - Wikipedia, the free encyclopedia
Not going to happen with a spinning disk. Modern consumer SSD's can't even reach 640MBps; the good ones average around ~550MBps.
I think the transfer speed claim on the external drive is just a clever marketing gimmick. I would assume they mean the data from the tiny 16MB buffer can potentially be sent that fast.
I think the transfer speed claim on the external drive is just a clever marketing gimmick. I would assume they mean the data from the tiny 16MB buffer can potentially be sent that fast.
Yup, buffer to USB interface....
"External (Interface) Transfer Rate
The internal transfer rate of the drive represents the speed with which bits can be moved to (from) the hard disk platters from (to) the hard disk's integrated controller. The external or interface transfer rate represents the speed which which those bits are moved between the hard disk and the rest of the PC. This is usually faster than the internal rate because it is a purely electronic operation, which is typically much faster than the mechanical operations involved in accessing the physical disk platters themselves. This is in fact a major reason why modern disks have an internal buffer."
PCGuide - Ref - Transfer Performance Specifications
"External (Interface) Transfer Rate
The internal transfer rate of the drive represents the speed with which bits can be moved to (from) the hard disk platters from (to) the hard disk's integrated controller. The external or interface transfer rate represents the speed which which those bits are moved between the hard disk and the rest of the PC. This is usually faster than the internal rate because it is a purely electronic operation, which is typically much faster than the mechanical operations involved in accessing the physical disk platters themselves. This is in fact a major reason why modern disks have an internal buffer."
PCGuide - Ref - Transfer Performance Specifications
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