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Green circuit board with M.2 slot and U.2 cable attached

Syba

Syba SI-ADA40123 M.2 PCIe NVMe SSD to U.2 (SFF-8639) 2.5-Inch Adapter expansion card

SKU CH-KY4H-A4ZBM MPN SI-ADA40123

Converts an M.2 NVMe SSD to a 2.5-inch U.2 drive with SFF-8643 cable, PCIe 3.0 and NVM Express 1.2a support

  • Supported operating systemsWindows 7/8/8.1/10 64-Bit, UEFI 2.3.1 or later
  • Product typeM.2 PCIe I/F NVMe SSD to U.2 (SFF-8639)
  • DetailsBuilt in M.2 M-Key Recep5cal Connector PCI Express Base Spec
  • Key featuresThis M.2 adapter turns a regular M.2 SSD drive into a U.2 SS
  • In the box1 x Adapter 1 x Copper Nut 1 x M3 × 3 Screw, M3 × 5 Screw 2
  • Converts M.2 NVMe SSD to U.2 2.5-inch form factor for SFF-8639 bay compatibility
  • PCIe 3.0 and NVMe 1.2a support maintains full drive performance through the adapter
  • Built-in short-circuit and thermal-shutdown protection safeguards the SSD during operation
  • Supports Windows 7, 8, 8.1 and 10 64-bit with UEFI 2.3.1 or later
  • Includes SFF-8643 to U.2 cable and mounting hardware for immediate installation

M.2 NVMe to U.2 adapter card

This Syba adapter converts an M.2 M-key NVMe SSD into a 2.5-inch U.2 form factor. It targets builders who want to install an M.2 drive into a system bay or backplane that only accepts SFF-8639 connectors. The card supports PCI Express 3.0 and NVM Express 1.2a specifications. Operating system compatibility covers Windows 7 through 10 64-bit with UEFI 2.3.1 or later.

Capacity and headroom

The adapter passes through the full performance of the installed M.2 NVMe drive without adding latency or bandwidth limits of its own. Maximum output current is rated at 3.3 volts and 5 amps, which accommodates most consumer and client SSDs. Short-circuit and thermal-shutdown protection circuits guard the drive and host against fault conditions. Builders needing higher power delivery or enterprise-grade power-loss protection should look elsewhere.

Bundled hardware

The package includes the adapter PCB, a copper mounting nut, two M3 screws of different lengths, two washers, and a SFF-8643 to U.2 adapter cable. These parts provide everything required to secure the M.2 drive onto the board and connect the assembly to a SFF-8643 port on a motherboard or HBA. No driver disc or management software is supplied.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $48.99
Pricier than about 70% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameSYBA
Model nameSI-ADA40123
Product typeM.2 PCIe I/F NVMe SSD to U.2 (SFF-8639)
Size & build
Shipping weight0.15 kg
Package size282 × 175 × 3 mm
Compatibility
Supported operating systemsWindows 7/8/8.1/10 64-Bit, UEFI 2.3.1 or later
In the box
In the box1 x Adapter
1 x Copper Nut
1 x M3 × 3 Screw, M3 × 5 Screw
2 x Washers
1 x SFF-8643 to U.2 Adapter Cable

Questions about this item

Will an M.2 NVMe SSD on this SI-ADA40123 adapter work with my older PCIe 3.0 motherboard slot?

Yes, the adapter uses PCI Express Base Specification Rev 3.0, so it runs at PCIe 3.0 speeds when installed in a compatible motherboard slot.

How can I confirm the adapter is functioning correctly after installing the SSD and connecting the cable?

The SSD should appear in UEFI 2.3.1 or later firmware and be recognised by Windows 7, 8, 8.1 or 10 64-Bit without additional drivers.

Does the package include the M.2 mounting screw and the SFF-8643 to U.2 cable, or must I buy them separately?

The box contains the adapter, a copper nut, M3x3 and M3x5 screws, two washers, and one SFF-8643 to U.2 adapter cable.

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