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Green circuit board with SFF-8639 connector and E1.S slot plus heatsink

Fervit

Fervit SFF-8639 U.2 to PCIe E1.S SSD Adapter

SKU CH-2AN5-5X0EJ

This adapter lets you install an E1.S ruler SSD (9.5 mm, 15 mm or 25 mm thick with heatsink) into a U.2 SFF-8639 PCIe 4.0 slot, no driver needed

  • Connect E1.S SSDs to U.2 slots via SFF-8639 interface
  • Supports 9.5, 15 and 25 mm drives with heatsinks
  • PCIe 4.0 compliant for high-speed NVMe performance
  • Driver-free installation works with modern operating systems
  • EDSFF form factor improves thermal and power management

Purpose & fit

This Fervit adapter lets you install an E1.S ruler SSD into a U.2 SFF-8639 slot. It accepts 9.5, 15 and 25 mm thick drives with heatsinks such as the PM9A3, PM9D3 and P5801X. The card targets IoT, data-centre and server builders who need EDSFF density on existing U.2 backplanes. No driver is required because the host sees a standard NVMe device.

Compatibility check

Verify that your system provides a U.2 SFF-8639 connector wired for PCIe 4.0 x4 and that the chassis can accommodate the E1.S ruler length. Confirm the operating system supports PCIe-NVMe storage natively. The adapter fits 9.5, 15 and 25 mm drive thicknesses, so measure your SSD before ordering.

Thermals, noise & power

A heatsink is integrated to spread heat from the installed E1.S SSD. The adapter itself has no active cooling and adds no audible noise. Power for the drive passes through the U.2 interface, so total draw depends on the specific SSD you install. Ensure your backplane and power budget can supply the chosen drive.

Highlights

  • Connect E1.S SSDs to U.2 slots via SFF-8639 interface
  • Supports 9.5, 15 and 25 mm drives with heatsinks
  • PCIe 4.0 compliant for high-speed NVMe performance
  • Driver-free installation works with modern operating systems
  • EDSFF form factor improves thermal and power management

Specifications

BrandFervit

Questions about this item

Does the adapter include the E1.S SSD or must I buy it separately?

The adapter is a carrier only; you must supply your own E1.S SSD such as a PM9A3, PM9D3 or P5801X.

Which E1.S thicknesses does the carrier accept?

It fits 9.5 mm, 15 mm and 25 mm thick E1.S drives with heatsinks.

What PCIe link speed will the SSD see once installed?

The adapter is compliant with PCI Express 4.0, so the drive will negotiate a Gen 4 x4 link.

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