DISK DATA RECOVERY

There are three main ways for us to transmit data between two computers. The first way is using network card; install network card to those two computers respectively and then modify the computer network settings. The second way is using the parallel port LL3 connecting cable to connect two computers; transmit data by making use of direct cable link program. The third way is USB interconnection.
 

 
According to statistics, the third way is used most frequently during data transfer. More and more products, such as SD card and external hard drive, are provided with a USB interface, so it can be connected to computer easily. Well, data loss happens on USB drive now and then. When that tragedy really occurs, we suggest you to finish USB drive recovery as fast as you can.
 

A Great Tool for USB Drive Recovery in Mac

If you’re running a Mac, there’re not so many choices for you to complete USB recovery on computer. Noticing this, we recommend MiniTool Mac Data Recovery to you.
 

Recover Data from USB Step by Step

Step 1: purchase a license and install the Mac Data Recovery software with this license (or you can download the free edition if you don’t trust this USB data recovery software for Mac. But remember, the free edition can only help you recover 1MB of data).
 
Step 2: run the software and choose a suitable module to start recovering data from USB according to the actual data loss situations.
 
Step 3: select the target USB partition and then press “Full Scan” button from lower right corner (you should press “Scan” button in this step it you’re using the “Undelete Recovery” module).
 

 
Step 4: when the scan is over, all files found by the software will be displayed in software. Now you only need to choose the ones you really need to recover and then press “Save” button to store them to another partition.
 
When all selected files are recovered completely to appointed place, you can end the process of USB drive recovery.
 
If you’re interested in methods for recovering data from USB drive on Windows, please read this article.
 

Background Knowledge for USB Specification

The USB specification was jointly developed by Intel, NEC, Compaq, DEC, IBM, Microsoft and Northern Telecom. The transfer rate of USB1.1 standard interface is 12Mbps, but a USB device can only reach up to 6Mbps transmission bandwidth. USB2.0 is compatible with USB1.1, but in this case, USB2.0 device can only work at full speed (12Mbit/s). The high speed and low speed of USB2.0 device are respectively 480Mbit/s and 1.5Mbit/s.
 
In contrast, USB 3.0 – the frequently used USB standard, which is also considered as SuperSpeed USB – provides a standard interface for a variety of devices which are connected to PC or audio/high-frequency device. Of course, USB3.0 is compatible with USB2.0.