Lenovo ThinkSystem 2U x8/x8 PCIe Riser3 KitThe Lenovo ThinkSystem 2U x8 x8 PCIe Riser3 Kit is a purpose built expansion solution designed for enterprise data centers that demand dense, reliable I O expansion in a compact 2U footprint. Engineered to slot seamlessly into ThinkSystem 2U servers, this Riser3 kit delivers dual PCIe x8 expansion paths, enabling you to add essential accelerators, NICs, storage controllers, and other PCIe devices without compromising airflow or chassis integrity.