Beware of Scams!
Please check the official statement from www.jinglemining.com in regards to the legitimacy of www.jasminer.org and www.jinglemining.cn.com below.
The official websites are www.jinglemining.com and www.jasminer.com
Please beware of websites that are offering free 10GB memory upgrades, or pre-orders on Jasminer X4 with 10GB memory - this machine is in fact non existent.
At present, the storage unit and logic unit of the JASMINER X4 series are designed with integrated storage and computing, and the capacity is 5G. There is no way to upgrade the capacity of the memory cells without replacing the entire chip.