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Supermicro RSC-R2UW-2E8E16+ riser card, green PCB with gold edge connector

Supermicro

Supermicro RSC-R2UW-2E8E16+ server accessory

SKU CH-Z34S-F3R8Y MPN RSC-R2UW-2E8E16+

Riser card supporting two expansion slots and sixteen lanes for server chassis upgrades

  • TypeOther
  • Riser card enables GPU expansion in 2U servers
  • Supports dual-slot cards with 16-lane PCIe bandwidth
  • 8 expansion slots fit dense compute configurations
  • 2 processor sockets supported for balanced I/O distribution
  • Available since March 2020 for current deployments

Riser card for 2U server chassis

The Supermicro RSC-R2UW-2E8E16+ is a riser card designed for 2U server platforms. It enables the horizontal installation of expansion cards inside a compact rack-mount enclosure. This accessory targets system integrators building dense compute or storage nodes. It fits workflows that require additional I/O or accelerator slots in a low-profile form factor.

Replaces standard low-profile brackets

This riser replaces the standard low-profile bracket arrangement that limits slot count in a 2U height. The jump is worth it when the chassis plan calls for more than the native vertical slot allowance. It suits builds that need to populate multiple add-in cards without moving to a larger 3U or 4U enclosure. The design supports configurations first listed by the manufacturer in 2020.

Maintains signal integrity under load

The card routes high-speed lanes from the motherboard to the horizontal slots with controlled trace lengths. This layout helps preserve signal quality when multiple expansion cards operate simultaneously under sustained throughput. Thermal conditions inside a populated 2U chassis remain the primary constraint for continuous operation. Adequate system airflow must be provided by the enclosure fans to keep all seated cards within spec.

Highlights

  • Riser card enables GPU expansion in 2U servers
  • Supports dual-slot cards with 16-lane PCIe bandwidth
  • 8 expansion slots fit dense compute configurations
  • 2 processor sockets supported for balanced I/O distribution
  • Available since March 2020 for current deployments

Specifications

TypeOther
Shipping weight0.45 kg
Package size152 × 51 × 25 mm

Questions about this item

What server chassis width and riser slot spacing does the RSC-R2UW-2E8E16+ require for installation?

This riser card is designed for 2U rack-mount chassis that provide two low-profile PCIe x16 slots aligned with the board's dual-slot bracket.

Which orientation must the card be seated in, and what alignment step is commonly missed?

Insert the card vertically into the motherboard's x16 connector with the bracket facing the rear panel; the keyed notch must engage fully before the retention screw is tightened.

When should the gold-finger contacts be inspected or the card reseated to maintain reliable link training?

Inspect contacts and reseat the card whenever the server is opened for major component changes or after any chassis vibration event that could loosen the bracket screw.

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