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Black PCIe 5.0 x16 adapter card with two upward-facing MCIO x8 slots

LetLinkSo

LetLinkSo LLS-CD-1PC2MC-01 PCIe 5.0 x16 to 2 MCIO x8 Hard Drive Adapter

SKU CH-NAX4-9AYT5

Converts a PCIe 5.0 x16 slot into two MCIO x8 ports for up to four U.2 NVMe SSDs

  • ColorBlack
  • SpecificationsUpward Interface
  • Connector APCIe x16 Connector
  • Connector BMCIO x8 Slot
  • Terminal GenderMale to Female
  • Connector StyleMCIOx8

Port Orientation Horizontal Front

  • Vertical Up
  • Horizontal Front

Struck-through versions exist but are not stocked here.

  • Connect up to four U.2 NVMe SSDs via two MCIO x8 ports
  • PCIe 5.0 x16 interface delivers up to 128 Gbps per drive
  • Combined bandwidth of 512 Gbps across all connected SSDs
  • Plug-and-play installation with included screws, screwdriver and mounting brackets
  • Requires motherboard PCIe bifurcation support to recognise all drives

What the adapter does

This LetLinkSo card converts one PCIe 5.0 x16 slot into two MCIO x8 connectors. It lets you attach up to four U.2 NVMe SSDs through separate MCIO cables, adding high-density storage to a workstation or server that has a free x16 slot.

When the upgrade makes sense

You need this when a single U.2 drive or a dual-drive card no longer supplies enough capacity or throughput. The jump is worth it only if the platform supports PCIe signal bifurcation; without that feature the board will see just one drive instead of four.

Installation and common pitfalls

The package includes the adapter, screws, a screwdriver and two bracket sizes for a straightforward plug-in fit. The usual failure mode is a motherboard that lacks bifurcation support, which leaves three of the four SSDs invisible to the system.

Highlights

  • Connect up to four U.2 NVMe SSDs via two MCIO x8 ports
  • PCIe 5.0 x16 interface delivers up to 128 Gbps per drive
  • Combined bandwidth of 512 Gbps across all connected SSDs
  • Plug-and-play installation with included screws, screwdriver and mounting brackets
  • Requires motherboard PCIe bifurcation support to recognise all drives

Specifications

BrandLetLinkSo
SeriesPCIe to MCIO Adapter
ModelLLS-CD-1PC2MC-01
ColorBlack
SpecificationsUpward Interface
Connector APCIe x16 Connector
Connector BMCIO x8 Slot
Terminal GenderMale to Female
Connector StyleMCIOx8
FeaturesENHANCED STORAGE CAPACITY
Package ContentsPCIe 5.0 x16 to 2 MCIO x8 Adapter Card * 1

Questions about this item

What motherboard slot and lane count does the LLS-CD-1PC2MC-01 need?

It requires a PCIe 5.0 x16 slot. The card splits the 16 lanes into two MCIO x8 connectors, so the motherboard must support PCIe bifurcation or signal splitting for both ports to work.

Which step in the installation is most often missed?

Enabling PCIe bifurcation in the motherboard BIOS before booting. Without it, only one of the two MCIO x8 ports will be recognised and only two of the four U.2 NVMe SSDs will appear.

When would the MCIO x8 to U.2 cables need replacing?

Replace them if the latch clips break, the connectors show bent pins, or drive drops appear under heavy load. The adapter card itself has no moving parts and needs no scheduled maintenance.

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