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Green circuit board with gold edge connector and silver U.2 port

SMUGDESK

SMUGDESK PH46 PCIe 3.0 X4 to U.2 SFF-8639 Adapter Card

SKU CH-ZCQ5-FBVTW

Converts a PCIe 3.0 x4 slot to a U.2 SFF-8639 interface for NVMe SSD installation

  • Connect NVMe SSD via PCIe 3.0 X4 slot
  • High-speed data transfer through U.2 SFF-8639 interface
  • Fits PCIe X4, X8 and X16 slots for broad compatibility
  • Stable circuit design supports reliable long-term operation
  • Plug-and-play installation works in desktop and server systems

U.2 NVMe adapter for PCIe 3.0 x4

The SMUGDESK PH46 converts a PCIe 3.0 x4 slot into a single SFF-8639 U.2 port so an NVMe SSD can be connected directly. It fits x4, x8 or x16 slots and is designed for desktop and server chassis that have a free expansion slot. The card provides a high-speed link without extra cabling complexity.

Suits builders adding one U.2 drive to an open slot

This adapter is for users who have a spare PCIe 3.0 x4 or wider slot and want to attach a single U.2 NVMe SSD. It is not for systems that lack a full-size PCIe slot, nor for builds that need multiple U.2 ports from one card. Buyers requiring hot-swap bays or RAID controllers should look at dedicated backplane solutions.

Fits standard PCIe slots and frees drive bays

Installation uses a standard PCIe bracket and requires no additional power connector beyond the slot. The card occupies one expansion slot and leaves 2.5-inch or 3.5-inch drive bays free for other storage. Ensure the motherboard BIOS supports booting from a PCIe-attached NVMe device if that is the intended use.

Highlights

  • Connect NVMe SSD via PCIe 3.0 X4 slot
  • High-speed data transfer through U.2 SFF-8639 interface
  • Fits PCIe X4, X8 and X16 slots for broad compatibility
  • Stable circuit design supports reliable long-term operation
  • Plug-and-play installation works in desktop and server systems

Specifications

No published specifications for this item yet.

Questions about this item

What PCIe slot width does the PH46 require to connect a U.2 NVMe SSD?

The PH46 works with PCIe 3.0 x4, x8 or x16 slots, so any of those widths will carry the four lanes the U.2 drive needs.

Will the PH46 fit in an older PCIe 2.0 motherboard slot?

The card is designed for PCIe 3.0; a 2.0 slot will limit the U.2 NVMe SSD to 2.0 speeds.

How can I confirm the PH46 is passing data at full PCIe 3.0 x4 speed after installation?

Check the link width and speed in the OS device manager or BIOS — it should show x4 at 8 GT/s per lane.

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