Cisco, a global giant and provider of IT, networking and cybersecurity solutions, has announced that it has received the final regulatory approval for a $4.5 billion agreement to purchase Acacia. The merger was reportedly approved by the Chinese government’s State Market Regulatory Administration (SAMR) on Tuesday. The consent from SAMR was the last hurdle to clear for Cisco to complete the deal.   Cisco’s plans to acquire Acacia Communications were first announced in July of 2019. The deal was on a fully diluted basis to buy the company for $70 per share in cash for a total of $2.6 billion. Cisco had then received the regulatory go-ahead from the United States, Germany and Austria.   Cisco has received the approval under certain conditions. According to SAMR, the deal could progress as long as Cisco and Acacia continue to fulfill existing contracts in China, as well as supply Chinese companies in…