The need for more bandwidth is growing every day with 5G, IoT and video on demand fueling that growth. To support these technologies and applications, data centers are feeling pressure to upgrade their networks to 400G. Consequently, the move to 400G is a preoccupation for data center operators. Let’s take a look at what the migration to 400G means to data centers, from handling new transceivers to selecting 400G testers that can validate networks reliably and efficiently.