We're about to enter Singles Day, so it's best to buy a brand new G90N. The newer models have better cooling performance. Regarding the Shanghai Stock Exchange, regulations vary by location and are subject to change. Previously, you could obtain a license for devices with power consumption of 15 watts or more in Hubei Province, but now they suddenly prohibit this, and even require revoking licenses from those who already had them. The policies change daily; don't create unnecessary problems for yourself.
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