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Green PCB adapter card with SFF-8639 U.3 connector and PCIe 4.0 x4 edge fingers

LORDWORLD

LORDWORLD U.3 SFF-8639 to PCIe 4.0 X4 Host Adapter for PM1735 NVMe SSD

SKU CH-ZYQ3-BCDD9

Adds a U.3 SFF-8639 slot via PCIe 4.0 x4 for PM1735 NVMe SSDs without drivers

  • Adds a U.3 SFF-8639 port to your motherboard via PCIe 4.0 x4
  • Works with PM1735 NVMe SSD without speed loss or driver installation
  • U.3 tri-mode design combines SAS, SATA and NVMe in one connector
  • U.3 drive detects host type on power-up for correct lane configuration
  • Supports hot-swap between drive types where firmware allows

U.3 SFF-8639 PCIe 4.0 X4 Host Adapter

This adapter adds a single U.3 SFF-8639 port to a desktop motherboard using a PCIe 4.0 X4 slot. It is built for users who need to connect a PM1735 series NVMe SSD that uses the U.3 form factor. The card operates transparently to the operating system and requires no software drivers.

PCIe 4.0 X4 interface limits

The adapter passes through the PCIe 4.0 X4 electrical connection without altering speed or protocol. It supports the NVMe, SAS, and SATA signals defined by the U.3 Tri-mode standard, but the card itself only functions with U.3 SSDs. It will not operate with U.2, SATA, or SAS drives.

U.3 SSD exclusivity

This adapter works exclusively with U.3 SSDs such as the PM1735 series and cannot detect or power U.2, SATA, or SAS drives. Buyers with existing U.2 or SATA/SAS storage cannot use this card for those devices.

Highlights

  • Adds a U.3 SFF-8639 port to your motherboard via PCIe 4.0 x4
  • Works with PM1735 NVMe SSD without speed loss or driver installation
  • U.3 tri-mode design combines SAS, SATA and NVMe in one connector
  • U.3 drive detects host type on power-up for correct lane configuration
  • Supports hot-swap between drive types where firmware allows

Specifications

BrandLORDWORLD

Questions about this item

Which version of this adapter matches a PM1735 NVMe SSD?

The card provides a single U.3 SFF-8639 port wired for PCIe 4.0 x4 and is designed for U.3 drives such as the PM1735 series.

What does the PCIe 4.0 x4 link mean for real-world throughput with this adapter?

The adapter passes the full PCIe 4.0 x4 lane width to the U.3 drive, so the SSD can run at its native NVMe speed without protocol translation.

Does the SFF-8639 interface cap performance compared to a native U.3 backplane?

The SFF-8639 connector carries the same four PCIe 4.0 lanes, so the electrical interface does not limit the PM1735 NVMe SSD.

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