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Green circuit board with two U.2 connectors and a PCIe x16 edge connector

Graviton

Graviton SA-032 Dual U.2 SFF-8639 to PCIe 3.0 x8/x16 Adapter

SKU CH-YVWP-NFNTS

Connects two U.2 SFF-8639 SSDs via PCIe 3.0 x8/x16 for simultaneous full-speed operation using Windows 10 virtual RAID or third-party software

  • Dual U.2 SFF-8639 slots run two drives at full speed
  • PCIe 3.0 x8 or x16 interface delivers up to 16 lanes of bandwidth
  • VROC RAID 0 creates a single high-speed volume under Windows 10
  • Built-in high-power DC modules keep both SSDs stable under load
  • CE certified adapter fits standard chassis with two U.2 bays

Graviton SA-032 Dual U.2 Adapter

The Graviton SA-032 connects two U.2 SFF-8639 solid-state drives to a single PCIe 3.0 x16 slot. It presents each drive to the operating system through the motherboard’s bifurcated PCIe lanes, allowing both devices to operate simultaneously.

Who this suits and who should look elsewhere

This card suits builders whose motherboard can split a x16 slot into dual x8 electrical links and who want to run two U.2 drives without a hardware RAID controller. It does not suit systems that lack PCIe lane bifurcation, as only one drive will be visible on such platforms.

Behaviour under sustained load

Onboard high-power DC modules deliver stable voltage to both drives during continuous operation. The design accommodates two U.2 devices side by side, letting them run at full speed for extended periods without thermal throttling.

Highlights

  • Dual U.2 SFF-8639 slots run two drives at full speed
  • PCIe 3.0 x8 or x16 interface delivers up to 16 lanes of bandwidth
  • VROC RAID 0 creates a single high-speed volume under Windows 10
  • Built-in high-power DC modules keep both SSDs stable under load
  • CE certified adapter fits standard chassis with two U.2 bays

Specifications

No published specifications for this item yet.

Questions about this item

Does my motherboard need to support PCIe lane splitting for both U.2 SFF-8639 drives to be recognised?

Yes, the adapter requires a motherboard with detachable PCIe channels; without lane splitting only one U.2 drive will be detected.

Can I install this PCIe 3.0 x8/x16 card in an older PCIe 2.0 x16 slot and still run both U.2 SFF-8639 SSDs?

The card fits a PCIe 2.0 x16 slot but each drive will be limited to PCIe 2.0 speeds; lane splitting is still required for dual-drive detection.

How can I verify that both U.2 SFF-8639 SSDs are running at full PCIe 3.0 x8 speed after setup?

Check Device Manager or a benchmark tool — each drive should show a PCIe 3.0 x8 link width and deliver near theoretical throughput.

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