RETIMER PCIe 4.0 to 2-Port Slim SAS SFF-8654 8i Adapter Card for NVMe M.2, M.3, U.2, and U.3 SSDs or PCIe Add-on Cards

A reminder of what a card with a retimer function is:

• A standard PCIe-to-SFF-8654 card without a retimer is passive: it is simply a connector hub that carries PCIe signals to SSDs or a backplane. It is simple and inexpensive, but has limited cable length and can sometimes be unstable depending on the system
• A card with a retimer function incorporates a chip that regenerates and stabilizes the signal. It is more expensive because it is more complex, but essential for long links, NVMe backplanes, or modern high-speed configurations, which greatly improves compatibility and reliability.

It requires a motherboard, CPU, and BIOS compatible with PCIe splitting, in order to split a PCIe x16 link into two x8 links or four x4 links for NVMe SSDs. Without this support, the card will only operate in PCIe x8 mode.

Compatibility:

The adapter does not require a driver for operation or communication with connected NVMe drives or risers.

Compatible with Windows, Mac, Linux, DOS....

Description:

High-performance retimer, with signal loss compensation up to 30 dB (PCB, cables, connectors).

Jitter reduction (deterministic and random).

Compliant with PCIe Gen 4.0 standards.

Uses a 100 MHz clock, compatible with SRIS functionality (independent clocks).

Direct connection to PCIe 4.0 NVMe SSDs via SFF-8654 8i to 2× SFF-8639 cable.

Two integrated SlimSAS (SFF-8654 8i) connectors.

8 PCIe lanes per port (up to 128 Gb/s per port).

Supported split modes: 4× PCIe x4, 2× PCIe x8 (requires CPU and BIOS support).

Comes with standard (full-height) and low-profile brackets.

Recommended operating temperature: 5 to 50°C.

Dimensions: 146.5 mm x 67.9 mm, weight: 155 g.