SGL-PORT 40GBPS GEN2 X8 HOST CH ADPT High Performance Computing (HPC) solutions have used InfiniBand (IB) networks to meet the needs of the most demanding set of applications and grand challenges. The QLE7340 is a single-port 40Gbps InfiniBand PCI Express Gen2 x8 Host Channel Adapter (HCA). It is a highly integrated design that delivers unprecedented levels of performance, making it the ideal solution for HPC applications that rely on low latency, direct memory access.