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Green circuit board with silver 74-pin SFF-8654 connector and PCIe 4.0 edge fingers

BoYata

BoYata 74Pin SFF-8654 8X PCIe 4.0 Adapter

SKU CH-ZA33-77QH7

Converts a PCIe 4.0 slot to a 74-pin SFF-8654 8X connector for SSDs or eGPUs at up to 32Gbps, with fixing holes for secure installation

  • PCIe 4.0 throughput up to 32 Gbps for fast storage and GPU links
  • Converts a PCIe x8 slot to a 74-pin SFF-8654 8x connector with mounting holes
  • Backward compatible with PCIe 3.0 so existing cards still work
  • Requires a motherboard that can split PCIe lanes to address two drives
  • Internal SFF-8654 installation keeps cabling tidy inside small hosts or laptops

BoYata SFF-8654 8X Adapter

The BoYata adapter converts a PCIe 4.0 x8 slot into a 74-pin SFF-8654 8X interface for connecting SSDs, GPUs or other expansion cards. It supports data rates up to 32Gbps and remains backward compatible with PCIe 3.0. The board includes fixing holes for secure installation in small hosts, desktops or laptops.

Motherboard PCIe Channel Requirements

This adapter only functions on motherboards that provide detachable or bifurcated PCIe channels. A board without signal splitting will recognise only a single connected drive. Verify that your platform can split an x8 electrical link before ordering, otherwise the second device will not be detected.

Sustained Transfer Behaviour

Under continuous load the link maintains PCIe 4.0 signalling at up to 32Gbps, limited by the host slot and attached device capabilities. Thermal performance depends on system airflow because the adapter has no active cooling. Cable quality and length also affect signal integrity during prolonged high-throughput operation.

Highlights

  • PCIe 4.0 throughput up to 32 Gbps for fast storage and GPU links
  • Converts a PCIe x8 slot to a 74-pin SFF-8654 8x connector with mounting holes
  • Backward compatible with PCIe 3.0 so existing cards still work
  • Requires a motherboard that can split PCIe lanes to address two drives
  • Internal SFF-8654 installation keeps cabling tidy inside small hosts or laptops

Specifications

No published specifications for this item yet.

Questions about this item

What cables or cards come in the box and what must I buy separately?

The adapter itself is included; an SFF-8654 8X cable and any GPU or SSD you want to connect must be purchased separately.

Which PCIe version should I match the adapter to for 32Gbps throughput?

Pair it with a motherboard that provides a detachable PCIe 4.0 x8 channel; it will fall back to PCIe 3.0 if that is all the board supports.

What does the 32Gbps figure mean when the adapter is installed in my system?

It is the peak PCIe 4.0 x8 bandwidth available to a single SSD or eGPU, provided the motherboard can split an x8 lane; without lane splitting only one drive is recognised.

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