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Green PCB riser card with one PCIe x1 edge connector and four full-length PCIe x16 slots, plus a 16-pin power socket

SMUGDESK

SMUGDESK PCIe x1 to 4x PCIe x16 Riser Card 16

SKU CH-HAKA-HJR7S

Converts one PCIe x1 slot into four x16 slots for multi-GPU mining rigs with external layout for better cooling

  • Converts one PCIe x1 slot into four PCIe x16 slots for multi-GPU builds
  • Engineered for mining rigs to add GPU positions efficiently
  • Stable port multiplier maintains steady signal transmission during extended operation
  • External separated layout reduces chassis crowding and improves GPU airflow cooling
  • Works with mainstream Intel and AMD motherboards for cryptocurrency mining setups

Multi-GPU Expansion for Mining Rigs

This PCIe x1 to 4x PCIe x16 riser card converts a single motherboard slot into four independent x16 ports. It is built for DIY cryptocurrency mining rigs that need to install multiple graphics cards beyond the board's native capacity. The port multiplier design supports stable data and power transmission across all four slots during continuous operation.

External Layout Aids Cooling

The separated external slot design moves graphics cards outside the main chassis to reduce internal crowding. This arrangement improves airflow around each GPU for more effective heat dissipation during mining workloads. Stable signal transmission is maintained across the multiplier structure to prevent frequent card drop-offs over long runtimes.

Sustained Load Stability

The mature port multiplier solution keeps data and power delivery steady when all four GPUs run continuously at full load. It avoids the signal degradation that can cause instability in extended mining sessions. Compatibility with mainstream Intel and AMD desktop motherboards ensures consistent behaviour across common mining platforms.

Highlights

  • Converts one PCIe x1 slot into four PCIe x16 slots for multi-GPU builds
  • Engineered for mining rigs to add GPU positions efficiently
  • Stable port multiplier maintains steady signal transmission during extended operation
  • External separated layout reduces chassis crowding and improves GPU airflow cooling
  • Works with mainstream Intel and AMD motherboards for cryptocurrency mining setups

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the SMUGDESK PCIe x1 to 4x PCIe x16 riser card into my motherboard?

Insert the card into an available PCIe x1 slot on the motherboard, secure it with the bracket screw, then connect the external power cable to the board's power connector before attaching GPUs to the four x16 slots.

What maintenance will the riser card need during long-term mining use?

Periodically check that the external power connector remains firmly seated and use compressed air to clear dust from the four PCIe x16 slots and the multiplier circuitry.

What is the first limit that appears when running four GPUs continuously through the single x1 link?

The single PCIe x1 upstream connection caps total bandwidth, so sustained multi-GPU workloads will hit throughput limits before the card's multiplier logic does.

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