Lenovo 4XH7B08870 SR850 V4 G5 Riser X16/X16/X8 HH

Lenovo 4XH7B08870 SR850 V4 PCIe Riser Card X16/X16/X8 HH

Overview

The 4XH7B08870 is a PCIe riser card for the Lenovo ThinkSystem SR850 V4 server, providing three half-height PCIe slots — two x16 and one x8 — for expanding compute-intensive workloads that require additional GPUs, high-throughput NICs, or storage HBAs. This is a G5 riser configuration, intended for builds where horizontal slot density matters and physical card height is constrained to half-height form factor. If you are adding a second or third double-wide GPU or deploying 100GbE networking cards in an SR850 V4, this riser is the mechanical and electrical bridge that makes those installations possible.

Compatibility

Designed for the Lenovo ThinkSystem SR850 V4 server platform. The G5 Riser designation is specific to the SR850 V4 chassis generation — it is not interchangeable with SR850 V3 or earlier SR850 riser assemblies, which use different backplane connector layouts and chassis anchor points. Verify the riser slot position (Riser X) in your SR850 V4 configuration guide before ordering, as the SR850 V4 supports multiple riser positions and the G5 label identifies the specific mechanical variant for this slot location. Compatible server expansion components including GPUs and NICs must be half-height (HH) form factor — full-height cards will not fit this riser assembly. For GPU-heavy data center server deployments requiring full-height PCIe slots, consult the alternate riser SKU for your chassis configuration.

Installation Notes

Installation is performed with the SR850 V4 powered down and chassis cover removed. The riser seats into the system board riser connector and is secured to the chassis via the integrated retention bracket — no additional tools beyond standard Phillips-head are required for the riser itself, though GPU or NIC cards inserted into the riser slots may require their own bracket hardware. Weight is 10.00 lb including packaging. Country of origin is Mexico. Confirm your SR850 V4 chassis has the correct riser slot bay cleared and that existing cabling does not obstruct the riser connector before seating.