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A green circuit board with four M.2 slots and a silver aluminium heatsink

BFKK

BFKK PCIe 4.0 x16 to M.2 NVMe x4 Expansion Card with Heatsink

SKU CH-DVPT-FJK84

Adds four M.2 2280 NVMe drives via a PCIe 4.0 x16 slot with bifurcation, aluminium heatsink and four 6 A 12 V-to-3.3 V power modules

  • Supports four NVMe drives simultaneously
  • Requires motherboard PCIe bifurcation X4X4X4X4 mode
  • RAID0 aggregates read speed to 14000 MB/s
  • Four independent 6 A 12 V to 3.3 V power modules
  • Aluminium alloy heatsink cools all installed SSDs

PCIe 4.0 x16 expansion card

This add-on card converts a single PCIe 4.0 x16 slot into four M.2 2280 NVMe drive positions. It is built for workstations and servers that need dense local storage on a single expansion slot. The board requires a motherboard with PCIe bifurcation support to operate correctly.

Four drives with 256 Gbps total bandwidth

Each slot runs at PCIe 4.0 x4, giving a combined interface ceiling of 256 Gbps. RAID 0 can aggregate throughput up to 14000 MB/s read, but only if the platform splits the lane into x4 x4 x4 x4 or x8 x4 x4 configurations. Without bifurcation the card will not detect all drives.

Bifurcation is the hard requirement

The motherboard must expose a BIOS option to split the x16 link into four x4 links and support PCIe RAID across those links. If the firmware cannot set x4 x4 x4 x4 or an equivalent mode, the adapter will not function as intended. No driver installation is needed once the hardware requirement is met.

Highlights

  • Supports four NVMe drives simultaneously
  • Requires motherboard PCIe bifurcation X4X4X4X4 mode
  • RAID0 aggregates read speed to 14000 MB/s
  • Four independent 6 A 12 V to 3.3 V power modules
  • Aluminium alloy heatsink cools all installed SSDs

Specifications

No published specifications for this item yet.

Questions about this item

Will this card work with my older motherboard that only has a PCIe 3.0 x16 slot?

The card uses a PCIe 4.0 x16 edge connector; it will physically fit a 3.0 slot but the motherboard must still support bifurcation into four x4 links and PCIe RAID, which many 3.0 platforms lack.

How can I verify the four SSDs are running at the advertised 14000 MB/s after installation?

Enable bifurcation to X4X4X4X4 in BIOS, configure RAID 0 in the motherboard RAID utility, then run a sequential read benchmark; sustained throughput near 14000 MB/s confirms the array is operating as intended.

Does the package include mounting screws or thermal pads for the four M.2 2280 drives?

The box contains the expansion card with its aluminium heatsink, four onboard 12 V-to-3.3 V 6 A power modules and a PCIe bracket; M.2 mounting screws and any extra thermal pads must be sourced separately.

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