Legal analysis: Selling music USB flash drives is an infringement of other people’s intellectual property rights and is illegal. However, criminal penalties will only be imposed if the profit is more than 30,000 yuan. However, no matter how much profit is made, It is illegal.

Legal basis: Article 217 of the "Criminal Law of the People's Republic of China" If the amount of illegal income is huge or there are other particularly serious circumstances, the person shall be sentenced to fixed-term imprisonment of not less than three years and not more than 10 years, and shall also be fined: ( 1) Reproduction, distribution, and dissemination to the public through information networks of his written works, music, art, audio-visual works, computer software, and other works stipulated in laws and administrative regulations without the permission of the copyright owner; (2) Publishing others' exclusive rights to publish (3) Copying, distributing, and disseminating to the public through information networks the audio and video recordings without the permission of the producers of the audio and video recordings; (4) Copying and distributing the audio and video recordings of their performances without the permission of the performers. products, or disseminate performances to the public through information networks; (5) Produce and sell artistic works that counterfeit the signatures of others; (6) Deliberately avoid or destroy the rights holders without the permission of the copyright holder or copyright-related rights holder. Technical measures taken to protect copyright or copyright-related rights in their works, audio and video products, etc.