This is a Lenovo ThinkSystem-branded Mellanox ConnectX-6 network adapter, a high-performance PCIe card built for servers that need very high throughput and low latency — typical uses include HPC clusters, AI/ML training infrastructure and high-speed storage networking. It's a VPI (Virtual Protocol Interconnect) adapter, meaning it can run as either InfiniBand or Ethernet depending on configuration, rated at HDR100 (100Gb/s InfiniBand) or 100GbE. It's a single-port card using a QSFP56 connector and installs into a compatible ThinkSystem server's PCIe slot, sitting well above standard 10/25GbE networking cards used in typical business servers.