The road to 400 Gig has been paved with several options available for both singlemode and multimode fiber, with 800 Gig and Terabit applications on the horizon. With emerging technologies and applications driving increased bandwidth requirements in enterprise data centers, decisions need to be made between outsourcing to the public cloud or adopting a private on-prem strategy. This presentation compares the cost, benefits, and infrastructure considerations as enterprise data centers look to adopt next-generation speeds.