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Green circuit board with two M.2 slots and gold PCIe edge connector

RIITOP

RIITOP Dual NVMe PCIe Adapter ASM2812 x8/x16 2230-22110

SKU CH-HV43-AS5M9

Adds two M-key NVMe SSDs via one PCIe x8 or x16 slot using ASM2812 chipset without requiring motherboard bifurcation

  • Thunderbolt 3NO
  • Add two NVMe drives through one PCIe x8 slot
  • ASM2812 chipset removes need for motherboard bifurcation
  • Each drive gets dedicated PCIe 3.1 x4 bandwidth
  • Fits 2230, 2242, 2260, 2280 and 22110 M-key NVMe SSDs
  • Works in PCIe 3.0, 2.0 and 1.0 x8 or x16 slots

Dual NVMe PCIe Adapter with ASM2812

This dual-slot adapter uses the ASMedia ASM2812 chipset to add two M.2 NVMe drives through a single PCIe x8 or x16 slot. It works without motherboard bifurcation because each drive receives its own PCIe 3.1 x4 lane allocation. Supported form factors are 2230, 2242, 2260, 2280 and 22110.

Tool-free install, no heatsinks allowed

The card drops into any PCIe 3.0, 2.0 or 1.0 x8/x16 slot and secures with a standard bracket screw. Each SSD mounts with the supplied standoffs and screws; no extra cables are required. Drives with integrated heatsinks will not fit because the two M.2 sockets are spaced tightly together. If the operating system does not detect a drive, download the SSD vendor's driver.

For M-key NVMe expansion on older boards

Builders who need two NVMe drives on a platform lacking native M.2 slots or bifurcation support will benefit. The adapter only accepts M-key NVMe SSDs; SATA-based B-key or B+M-key drives are not compatible. Systems that cannot boot from NVMe will not be able to use an attached drive as the OS volume. Hardware RAID is not supported.

Highlights

  • Add two NVMe drives through one PCIe x8 slot
  • ASM2812 chipset removes need for motherboard bifurcation
  • Each drive gets dedicated PCIe 3.1 x4 bandwidth
  • Fits 2230, 2242, 2260, 2280 and 22110 M-key NVMe SSDs
  • Works in PCIe 3.0, 2.0 and 1.0 x8 or x16 slots

Specifications

Thunderbolt 3NO

Questions about this item

How do I confirm the adapter is working after installing two NVMe SSDs?

Open Disk Management or Device Manager in Windows; both drives should appear as separate NVMe devices. If a drive is missing, download the SSD manufacturer's driver from their official site.

What comes in the box and what must I buy separately?

The adapter board is included. You must supply two M-key NVMe SSDs in 2230, 2242, 2260, 2280 or 22110 form factors; SSDs with heatsinks will not fit due to tight spacing.

Which M.2 lengths does this adapter accept?

The card supports 2230, 2242, 2260, 2280 and 22110 NVMe SSDs. Choose the length that matches your drive; all five sizes mount on the same board.

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