The DS320PR412-421EVM features two DS320PR412 and two DS320PR421 linear redrivers that can extend the transmission distance of a PCIe Gen-5 x8 bus. The EVM can be directly plugged into a PCIe slot on a server or PC motherboard using the PCIe Edge connector on the board and paired with a PCIe add-in card using one of the two PCIe connectors on the EVM.

DS320PR412-421EVM includes the following features:

• PCIe x16 and PCIe x8 Riser Card with two DS320PR412 and two DS320PR421 4-channel unidirectional linear redrivers operating at rates up to 32Gbps.
• DS320PR412: linear redriver with 1:2 MUX
• DS320PR421: linear redriver with 2:1 DEMUX
• Linear equalization for seamless support of link training and PCIe channel extension
• CTLE boosts up to 24dB at 16GHz
• Device configuration and MUX selection by pin control, SMBus, or I2C.
• Flow-thru layout with no heat sink required