It is legal and safe. According to the query on Youxia.com, steam recharge cards are recharge cards purchased by regular card dealers at a lower cost through credit card cashback and other means. Regular card dealers collect these recharge cards and then wholesale them to Taobao stores. Taobao stores are authorized and carry out Selling is legal and safe. The Steam platform is a game platform that Valve hired Bram Cohen, the inventor of BitTorrent, to personally develop and design.