SSD data is stored in NAND flash, different from traditional HDD, SSD size is much smaller, with no moving mechanical parts, when running the SSD it’s silent, SSD is also much faster than HDD.

No, PNY SSDs operate with standard drivers making it easy to plug into and work on most major operating systems, such as Windows and Mac OS.

The most major of which are capacity and speed. You may could refer the  specification by SD Association (www.sdcard.org)

You could download the repair tools from support page of PNY Asia website. Try to format it on your computer and follow the below steps.

1. Download and extract the compressed zip file
2. Plug USB drive into any USB port
3. Run the UFIX tools
4. Click Format or Start bottom when it detected the USB drive
5. It will show Complete or OK when done
6. Unplug the USB drive

Note: The tool will format and delete ALL data of the flash drive. PNY is NOT liable for data loss in connection with the product, regardless of the cause.

You could download the online UFIX tools from PNY support page to re-initialize your USB product. But those way will be delete all data of the USB. PNY is NOT liable for data loss in connection with the product, regardless of the cause. PNY is NOT liable for any data loss of USB flash Drives.
 

If the USB 3.0 is connected to the devices via the USB 2.0 port, the USB speed only USB 2.0 standard.