Frequently asked questions.
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All of our systems offer functional testing of all flash media. The systems allow you to run standard or create you own test procedures. These range from simple speed tests to full burn-in tests simulating multi read and write cycles.
The short answer is yes, however in real terms the answer should always be no!
To understand the reasons its worth considering these points:
1.) Not all flash media devices are equal.
If you want to make an exact copy of the data of a device that it stands to reason that both the source and targets devices should be identical physically. This means that the components used inside the devices are the same, typically there are two important components to any flash media device (SD, USB, SSD, CF etc.) these are the flash controller and the flash memory. Because there can be many variations this means that there are many variation in the final product, this means that a 16GB is never exactly 16GB, it can be 15.8GB or 15.9GB. For example, a 16GB SD from one manufacturer will be different from a 16GB from another, so if the source is created on a device that is 15.9GB and the target is 15.8GB it simply will not fit!
2.) Will Windows let me copy to any device?
Yes, it will do! However it will not be an exact copy of your original device. It will have the same data but there are no guarantees the data is the same. Windows will copy file by file whereas professional duplication systems replicate the data identically to the original.
3.) So how can I copy to different size targets?
If your source device is smaller than the targets then it may be possible to copy to the targets as the data image will 'fit'. However, we do not normally recommend this.
There are 3 ways to write protect an SD card.
1.) Simple mechanical lock, each full size SD card has a lock switch which tells the host device not to write to the card. This method is the least reliable as it does require that that the device you are plugging the card in to recognises that the switch is set, it also is very easy to knock or move the switch whilst plugging or unplugging the card. Another disadvantage is that anyone can simply move the switch back to enable writing. This switch is not available on microSD!
2.) Temporary write protect. Each and every SD card has a built in function to allow a 'temporary' write protect of the entire data area. The card cannot be written to in any device once this is set, data cannot be edited, deleted or added to. The function is set with the controller of the SD card and therefore needs special command to do so, this function is available on our SD duplicators, please contact us for further information. The reason this is considered temporary is that it can be reversed and set again to a standard read/write SD card.
3.) Permanent write protect. This works in the exact same way as the temporary write protect except it cannot be reversed. Some SD cards have a built in function where the card will go in to permanent write protect when the flash memory fails or too many bad cells are detected. This is done to protect any data left on the card so that it can be recovered.
UHS-I stands for "Ultra High Speed" - 1 and is a speed class for SDHC and SXDC memory cards. UHS-I has a bus interface speed of up to 104 MB/s. An SDHC UHS-I card will work in any SDHC or SDXC compatible devices at lower speeds, but to take advantage of the UHS-I speed, a UHS-I compatible device is essential. These cards and devices are normally marked with the symbol"UHS-I" or "I" A speed class is also defined.
Duplication speeds depend on the speed of the actual device as much as the speed of the duplication machine. So you may find that 2 different brands of flash drive perform completely differently. Our systems will always perform at the optimal speed of the device, up to a write speed of 100MB/s per device simultaneously. However a typical USB2.0 Flash drive may only be able to write at 10MB/s.