1. Four Versions (1G/2G/3G/4G) are available for purchase

2. For 1G version, the maximum virtual memory disk size is 1G

3. For 2G version, the maximum virtual memory disk size is 2G

4. For 3G version, the maximum virtual memory disk size is 3G

5. For 4G version, the maximum virtual memory disk size is 4G (Usually the computer hardware

and the Windows operating system will reserve and take up some memory for use, so usually

users can only use 3.6Gb at maximum for the boot-up virtual memory disk)