In recent years, we continue to experience how storage performance is getting faster, which has been challenging the old storage protocols that have become a bottleneck for data centers. Despite using the latest fabric speed of 100GbE and new networking standards, such as InfiniBand, those slow network protocol technologies restrain flash device's performance, keep it inside the device itself and isolated in the box. In this article, we take a quick look into Non-Volatile Memory Express (NVMe). Further, we overview NVMe over Fabrics (NVMe-oF) and NVMe over RDMA over Converged Ethernet (NVMe over RoCE), a new protocol specification developed to solve bottlenecks of modern storage networks.