DiLinker PCIe 5.0 MCIO x8 to 2x U.2 NVMe Adapter - Dual NVMe Expansion

In this review the DiLinker PCIe 5.0 MCIO x8 to 2U.2 NVMe Adapter is assessed for users who need to add high-speed NVMe storage to servers or workstations without free M.2 ports. The bottom line: it converts a single PCIe Gen5 x8 slot into two U.2 NVMe connections using the SFF-TA-1016 to dual SFF-8639 cable and an included power lead, delivering a compact, reliable way to expand capacity and sustain high throughput in tight chassis. It is especially useful where thermal routing and stable power delivery matter.

Key Features

• Dual U.2 expansion: Converts one PCIe x8 slot into two U.2 NVMe slots so systems gain extra high-performance drives without replacing the motherboard.
• SFF-TA-1016 compatibility: Uses the SFF-TA-1016 74-pin to 2x SFF-8639 68-pin interface to ensure compatibility with drives and enclosures that follow that standard.
• PCIe Gen5.0 performance: The Gen5.0 interface supports higher transfer rates and reduced external latency for demanding workloads compared with older generations.
• Included powered cable: The adapter ships with a cable that supplies power to the U.2 connectors, which helps maintain stable operation under sustained load.
• Compact design: The small form factor and an 80cm Mini Cooledge IO cable make the adapter practical for installation in cramped server bays or workstation cases.

Who It's For

The adapter is best for IT professionals, system builders, and content creators who need to add two U.2 NVMe drives to a system that has an available PCIe Gen5 x8 slot. It suits environments where throughput and reliable power delivery are priorities, such as editing workstations, small servers, or storage-heavy rigs.

It is not aimed at users who only need a single consumer M.2 drive or those with spare PCIe x16 lanes they prefer to reserve for GPUs; also, anyone without U.2 NVMe drives or the appropriate chassis routing may find a different solution simpler.

Pros & Cons

Pros

• Enables two U.2 NVMe drives from a single PCIe x8 slot, multiplying storage interfaces without extra controllers.
• PCIe Gen5.0 interface supports higher data transfer speeds for demanding tasks.
• Includes SFF-TA-1016 to 2x SFF-8639 cable with power, simplifying installation and improving reliability.
• Compact size and 80cm Mini Cooledge IO cable fit restricted server or workstation layouts.

Cons

• Requires compatible U.2 NVMe drives and appropriate chassis routing, so additional parts may be needed for some builds.
• Performance depends on host platform lanes and drive capabilities, so real-world gains vary.

Specifications

Product type	PCIe to dual U.2 NVMe adapter
PCIe interface	PCIe Gen5.0 x8
Cable standard	SFF-TA-1016 74-pin to 2x SFF-8639 68-pin
Included cable	Mini Cooledge IO cable with power, 80cm (31.5 in)
Drive support	Two U.2 NVMe SSDs (SFF-8639)
Design	Compact for server or workstation installation

Our Verdict

The DiLinker adapter is a practical, cost-effective way to expand NVMe capacity when you have a free PCIe Gen5 x8 slot and require robust power and cable routing. It is good value for professionals who need dual U.2 connections without changing their motherboard, offering strong compatibility and a compact form that works in constrained spaces.

Frequently Asked Questions

Will this adapter work with my PCIe x8 slot?
Yes, it is designed for a PCIe Gen5 x8 slot; performance depends on the host lanes and platform support.

Does the kit supply power to the U.2 drives?
Yes, the included SFF-TA-1016 to dual SFF-8639 cable has power to ensure stable drive operation.

How long is the IO cable and is it suitable for tight cases?
The Mini Cooledge IO cable is 80cm (31.5 in), and the adapter is compact for use in confined server or workstation bays.