Lenovo 4XH7B03717 Thinksystem SR650 V4 Riser Cage for Riser 1 or 4 Option KIT

Lenovo 4XH7B03717 ThinkSystem SR650 V4 Riser Cage Kit

Overview

The 4XH7B03717 is a riser cage option kit designed for the Lenovo ThinkSystem SR650 V4 server, supporting installation in either the Riser 1 or Riser 4 position. If you're expanding PCIe connectivity on an SR650 V4 — adding storage controllers, network adapters, or GPU cards — this cage is the mechanical prerequisite that makes the riser slot physically usable. Without the correct cage, the riser card has no structural home and PCIe expansion is blocked. This is a factory-new, genuine Lenovo option kit sourced through channel-direct distribution.

Compatibility

This kit is specific to the Lenovo ThinkSystem SR650 V4 2U rack server. It is not interchangeable with SR650 V2 or V3 riser hardware — Lenovo's riser cage geometry and mounting points differ across generations, so verify your chassis generation before ordering. The kit supports the Riser 1 (front-of-chassis) and Riser 4 positions, giving flexibility depending on which PCIe slots are being populated in your configuration. If you are building out a rack server expansion with additional PCIe cards, confirm your SR650 V4's existing riser population to avoid ordering a duplicate cage for a position already equipped. For full platform context, see the broader Lenovo server and compute catalog.