This is a period correct NES multicart from Taiwan. This cartridge was released around 1990 and contains 58 games that play on the NES. These games are either regular NES titles, NES titles that have had all trademark information removed from them, or are homebrews from the late 80s to early 90s.
Being a retro aftermarket cartridge it may require reseating the cartridge into your NES console more than once for it to boot correctly. This is a common issue that has been happening since these cartridges were released brand new back in the 80s and 90s. Rest assured that this cartridge has been fully cleaned and tested and works just as it should.
The translation of the Mandarin on the cartridge reads "58 Games Micro Cartridge".