The Mellanox Technologies M2401G 24-port 20Gb/s InfiniBand switch is a high-performance, low-latency switch designed specifically for the Dell M1000e chassis. The switch supports both InfiniBand FDR and SDR standards and provides 24 20Gb/s ports. The M2401G switch also supports a number of advanced features, including PFC, E2E flow control, and congestion control.