Product Description

RD5485 is a Eight-Channel PCIe 4.0 Linear Redriver board. It is designed with two Eight-Channel PCIe 4.0 Linear Redrivers to support PCIe Gen 4.0 . It can be conveniently applied to PCIe 4.0 link extension.

The Eight-Channel PCIe 4.0 Linear Redriver deploy continuous time linear equalizers (CTLE) to provide a high-frequency boost. The equalizer can open an input eye that is completely closed due to inter-symbol interference (ISI) induced by an interconnect medium, such as PCB traces.

The linear redriver along with the passive channel as a whole get link trained for best transmit and receive equalization settings resulting in best lectrical link and lowest possible latency. Low channel-channel cross-talk, low additive jitter and excellent return loss allows the device to become almost a passive element in the link. 

The device requires an externally provided clean and stable 3.3V power supply.

Warning: Don’t use power supplies higher than 3.3V and don’t reverse the polarity of the power supply

Features

Support up to 8 Lanes

Compatible with PCIe Gen4

Directly connected to U.2 NVMe SSD by SFF8654 to SFF-8639 cable

 Build in SFF-8654 8i connector , pin-out defined by SFF-9402 

Operating system support

The adapter does not require a driver for operation or communication to attached NVMe drives. The drives are presented natively to the host and use the native NVMe drivers.