Solid state drives offer a significant performance advantage over hard drives; the bandwidth improvments simply cannot be matched. However, over SAS or SATA busses this potential performance edge is severely limited. With NVMe over PCIe, SSD bandwidths reach nearly 3x/4x better performance than over SAS/SATA respectively.
Via FPGA PCIe plug-in cards, many bottlenecks resulting from SAS and SATA systems can be alleviated, improving storage networks in enterprise workloads. NVMe has since expanded to include capabilities over fabric. Intel PSG offers RDMA over converged ethernet (RoCE) to improve storage structures including native latencies for remote SSDs.