Data Compass Unlimited Version
Data Copy King Is the Add-On Hardware Solution of Data Compass
Background:
Since the release of Data Copy King—the hard drive duplicator, people develop following doubts: What is the relationship between Data Compass and Data Copy King? Is Data Copy King a replacement data recovery tool of Data Compass? Does SalvationDATA put more attention in creating new data recovery tools while not improving the existing data recovery tools?
Confined to the limits of USB 2.0 in transfer speed, hard drive capacity exceeding 500GB cannot be well supported. A well-matched solution is desperately needed.
What is data compass unlimited version?
With the release of Data Copy King and under the transfer rate limitation of image function with USB 2.0 interface, Data compass unlimited version comes into being. It is a package solution including data compass with data copy king add-on, which is possessed of all the great performance in data restoration and file extraction of data compass as well as super speed and overwhelming supporting for TB-level hard drives of data copy king. Thus Data Compass becomes more powerful with Data Copy King Add-on hard drive duplicator.
On April 12th, SalvationDATA released Data Copy King as the universal hard drive duplicator with disk image transfer speed at 7GB/min and the great feature of supporting TB-level hard drives. Besides it integrates 8GB/min disk wiping hardware solution and 7GB/min disk test solution.
Since the release, people have following questions or doubts：What is the relationship between Data Compass and Data Copy King? Is Data Copy King a replacement tool for Data Compass? Does SalvationDATA put more attention in creating new tools while not improving the existing tools?
The Answer is: Data Copy King is the add-on hard drive duplicator solution of Data Compass and at the same time, it is one independent high-speed disk image and data wiping hardware.
Why USB 2.0 cause limitation of transfer speed?
Data Compass was originally designed with UDMA 133 supported; though Data Compass finally adopted USB2.0 design which has a data transfer speed limit, it thereafter met the increasing demand for portable data recovery hardware tools and customers are happy about the portability. Technique limit is always causing problem. When Data Compass comes to image hard drives with big capacities over 500GB, it becomes very slow with the USB2.0 data transfer mode and becomes ineffective:
1Byte=8bit, 1KB=1024Bytes, 1MB=1024KB, Mbps= MEGABIT per second=1, 000, 000 Bits
USB 2.0 has a raw data rate at 480Mbps, which is also its theoretical data transfer speed=480*1,000,000/8/1024/1024=57.22MB/s=3.35GB/m
For a 500GB hard drive with perfect conditions, even if you have reached the theoretical data transfer speed of 3.35GB/m, you need to spend about 2.5hours. However, the theoretical 57 MB/sec can never be achieved due to the margin taken between the sof's. Most users can have a speed of about 25MB/s around. What if you are going to image unstable disks after a head swap or drives with a lot of bad sectors? At that time, you will find USB2.0 data transfer mode far away from a satisfactory imaging speed for drives with big capacities or even TB-level hard drives.
One thing is obvious now; it’s the limit of the USB 2.0 design that makes Data Compass slow for imaging disk of over 500GB. But USB2.0 design is also an excellent feature for Data Compass to be portable and the most important, you can recover wanted files, partitions without being affected and without limitation to the capacity of the hard drives or file sizes. You can select easily which files to recover and save in your wanted place. Do please note here:
The capacity limit of 500GB is only affecting when you are using Data Compass to image the hard disks, not affecting the recovering function at all.
|
