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Green PCIe expansion card with four M.2 NVMe slots and gold-plated connectors

SMUGDESK

SMUGDESK AU-P599 PCIe 4.0 x16 to 4-Bay M.2 NVMe Expansion Card

SKU CH-HEVS-F0ZCP

Converts a PCIe 4.0 x16 slot into four M.2 NVMe bays with 64Gbps bandwidth and RAID0 support

  • Converts one PCIe 4.0 x16 slot into four M.2 NVMe bays
  • Delivers up to 64Gbps bandwidth for ultra-fast data transfer
  • Gold-plated PCB optimizes conductivity and keeps signal stable
  • RAID0 support boosts overall read and write speed greatly
  • Standard desktop card design enables easy plug-and-play installation

Expansion card for four NVMe drives

The SMUGDESK AU-P599 converts one PCIe 4.0 x16 slot into four M.2 NVMe bays. It targets desktop and workstation users who need to add multiple high-speed drives without extra drive cages. The card supports RAID0 to combine drives for higher throughput. Gold-plated PCB traces maintain signal integrity across all four slots.

Thermals and power in normal use

Passive cooling relies on case airflow to keep the controller and installed drives at safe temperatures. The gold-plated PCB reduces resistance and helps maintain stable signal transmission during typical workloads. Power draw scales with the number and model of NVMe drives populated. No active fan is included so silent operation depends entirely on chassis ventilation.

Behaviour under sustained load

RAID0 arrays spread continuous reads and writes across all four drives to sustain high bandwidth up to 64Gbps. Thermal throttling may occur on drives if case airflow is insufficient during long transfers. The PCIe 4.0 x16 host link provides headroom so the card itself does not bottleneck the array. Performance scales with the slowest drive installed in the set.

How it compares

Measured against everything we stock in SATA, IDE & M.2 Drive Adapters, at today’s prices. Recalculated every night.

Price $31.99
Pricier than about 68% of the 1,721 comparable items (median $22.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install the AU-P599 in a PCIe 4.0 x16 slot, and what step is often missed?

Insert the card fully into the x16 slot, secure the bracket screw, then mount each NVMe drive with its own standoff and screw — the standoff step is frequently skipped, leaving drives loose.

What maintenance will the gold-plated PCB and four M.2 slots need over time?

Occasionally reseat the card and each NVMe drive to refresh contacts, and use compressed air to clear dust from the gold-plated PCB and slot openings.

What limit appears first when all four bays run sustained workloads?

The shared 64Gbps PCIe 4.0 x16 bandwidth becomes the bottleneck before any single drive reaches its own ceiling.

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