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Green PCIe add-in card with full-height bracket, two SlimSAS SFF-8654 8i connectors, and surface-mount retimer chips

Shenzhen Lianrui Information Technology

Shenzhen Lianrui Information Technology LRNV9F24 PCIe 4.0 x16 to Two SlimSAS SFF-8654 8i Retimer Adapter

SKU CH-46XD-Y0SXH MPN LRNV9F24

Connects up to four PCIe 4.0 U.2 NVMe SSDs via two SlimSAS SFF-8654 8i ports using a retimer on a PCIe 4.0 x16 slot

  • Product typePCI Express Controller Card
  • Connect four U.2 NVMe SSDs via two SlimSAS SFF-8654 8i ports
  • PCIe 4.0 x16 host interface with retimer for signal integrity
  • Requires motherboard and BIOS bifurcation to split x16 into quad x4 links
  • Uses standard 100 MHz reference clock with optional clock output
  • Direct cabling to U.2 drives through SFF-8654 to SFF-8639 cables

PCIe 4.0 x16 Retimer Adapter

This PCIe 4.0 x16 add-on card uses a retimer to maintain signal integrity across two SlimSAS SFF-8654 8i ports. It targets server, storage appliance and hardware accelerator builds that need to connect high-speed U.2 NVMe SSDs. The card requires a motherboard and BIOS that support bifurcation to split the x16 link into multiple lanes. Without that support the link remains at x16 width.

Dual SlimSAS Ports Enable Four U.2 Drives

Each SlimSAS SFF-8654 8i connector carries two x4 links so the adapter can host up to four PCIe 4.0 U.2 NVMe SSDs when paired with SFF-8654 to SFF-8639 cables. The retimer regenerates the 100 MHz reference clock and supports clock output to keep timing stable across the longer cable runs typical in dense enclosures. Bifurcation must be configured as quad x4 or dual x8 depending on the drive count.

Standard BGA Retimer in a Low-Profile Bracket

The retimer is mounted on a standard BGA package and the card fits a low-profile bracket for space-constrained chassis. Two SlimSAS ports face the rear so cables route cleanly toward backplane bays. Builders who need more than four U.2 drives or who cannot enable bifurcation in firmware will not be able to use the full capability of this adapter.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $160.99
Pricier than about 90% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameLinkreal
Product linePCIe 4.0 X16 to Slimsas SFF-8654 Card
Model nameLRNV9F24
Product typePCI Express Controller Card

Questions about this item

Will the LRNV9F24 retimer itself need firmware updates or replacement over time?

The adapter uses a PCIe 4.0 retimer with a standard 100 MHz reference clock and does not expose a user-serviceable firmware interface, so no routine retimer maintenance is expected.

What limits sustained throughput first — the PCIe 4.0 x16 host link or the two SlimSAS SFF-8654 8i connectors?

Each SlimSAS SFF-8654 8i connector carries eight lanes, matching the bifurcated x8 or quad x4 paths from the x16 slot, so neither the retimer nor the connectors impose a lower ceiling than the host link.

How much heat and noise does the card add when driving four U.2 NVMe SSDs all day?

The retimer operates from the slot's 100 MHz reference clock without an onboard fan, so added heat is limited to the retimer's own dissipation and noise stays at the system's existing airflow level.

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