Lenovo 4XH7A86398 SR655 V3 X8/X8 G5 R3 Riser Kit

Overview

The Lenovo 4XH7A86398 is a PCIe riser kit designed for the ThinkSystem SR655 V3 server, providing dual x8/x8 Gen 5 riser slots to expand PCIe card capacity within the chassis. At 10 lb, this is a structured mechanical and electrical assembly — not a lightweight bracket — which reflects the full riser cage, connectors, and retention hardware included. If your SR655 V3 deployment requires additional PCIe Gen 5 expansion beyond the base configuration, this kit is the correct path rather than adapting an incompatible riser from another server family.

Compatibility

Designed specifically for the Lenovo ThinkSystem SR655 V3 server platform. The x8/x8 Gen 5 designation indicates two PCIe Gen 5 x8 slots delivered through a single riser assembly — sized for half-length or full-length cards depending on the chassis bay. Confirm your SR655 V3 chassis revision and existing riser configuration before ordering: the SR655 V3 supports multiple riser options and slot positions, and installing a mismatched riser kit will result in non-functional expansion slots. This kit is not cross-compatible with SR650, SR655 V2, or other ThinkSystem chassis variants.