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Green circuit board with four M.2 slots and large silver heatsinks, full-length PCIe x16 gold fingers

RIITOP

RIITOP Quad M.2 NVMe to PCIe 4.0 X16 Adapter Without Bifurcation

SKU CH-BZYZ-3GB6G

Connects four M.2 NVMe SSDs (2230–22110) via PCIe 4.0 x16, requiring motherboard bifurcation for full four-drive access

  • TypeNVME to PCIe 4.0
  • Connect four NVMe SSDs simultaneously via PCIe 4.0 X16
  • Supports M.2 sizes 2230, 2242, 2260, 2280, 22110
  • Requires motherboard with PCIe bifurcation for full four-drive access
  • Enables OS booting after BIOS/UEFI configuration
  • Soft RAID supported on Intel and AMD platforms

Quad M.2 NVMe adapter for PCIe 4.0 X16 slots

This RIITOP adapter lets you install up to four M.2 NVMe SSDs in a single PCIe 4.0 X16 expansion slot. It accepts drive lengths of 2230, 2242, 2260, 2280 and 22110 so you can mix capacities. The card is designed for Intel and AMD desktop platforms and supports soft RAID configurations. Mac Pro 5.1 systems are not supported.

Sustained operation depends on motherboard

Because the adapter lacks an onboard PCIe switch, the host motherboard must support bifurcation in BIOS with X4X4X4X4 or Hyper M.2 X16 modes to address all four drives simultaneously. If bifurcation is absent or set to X8X4X4 or X4X4X8, only three SSDs are detected and the fourth remains invisible. Full PCIe 4.0 X4 64Gbps throughput per drive requires a CPU, motherboard slot and SSD that all implement the 4.0 specification.

Passive PCB with four M.2 sockets

The board provides four keyed M.2 slots and a standard PCIe X16 gold-finger edge connector for direct slot mounting. No external power cables or active cooling are included, so airflow in the case must handle the thermal load of four NVMe drives. Installation is a simple screw-down of each SSD into its designated socket before seating the card in the expansion slot.

Highlights

  • Connect four NVMe SSDs simultaneously via PCIe 4.0 X16
  • Supports M.2 sizes 2230, 2242, 2260, 2280, 22110
  • Requires motherboard with PCIe bifurcation for full four-drive access
  • Enables OS booting after BIOS/UEFI configuration
  • Soft RAID supported on Intel and AMD platforms

Specifications

TypeNVME to PCIe 4.0

Questions about this item

Does the adapter add any active cooling or extra power draw when four NVMe SSDs run all day?

The card is a passive PCIe 4.0 x16 adapter with no onboard fan or power connector; all power and heat come from the installed SSDs themselves.

What motherboard feature must I already have so that all four M.2 slots are recognised?

Your motherboard must support PCIe bifurcation in the BIOS and be able to split the x16 slot into x4-x4-x4-x4 or Hyper M.2 x16 mode.

Will this work with a Mac Pro 5.1 that I still use for storage?

The manufacturer states the adapter does not support Mac Pro 5.1, so the four NVMe drives will not be recognised on that system.

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