The purpose of the Tachyon II is to develop a next gen space VNX development platform based on the PolarFire SoC FPGA, the first SoC FPGA that utilizes a RISC-V processor system. Compared to other recent top-of-the-line processors, RISC-V processing runs at faster speeds and consumes far less power. The Tachyon II PCB will serve to be useful as a starting point for future projects involving autonomous vehicles, cache coherent multiprocessing across multiple boards, sensor fusion, machine learning, and other related projects. It is our intention that the Tachyon II is able to be utilized in many different industries and be applied in new and creative ways. Our team has worked on the documentation for this project, designed the schematic capture, designed the hardware design, and made a tech demo for the board with help of a software team. We also managed to fit the entire system onto a small PCB measuring 56 mm by 78 mm in addition to integrating RapidIO technology into the PolarFire SoC FPGA. The Tachyon II card is designed to support the following use models: • Prototyping: The card can be used to prototype IP designs on the PolarFire FPGA and test interoperability with other Space VPX cards. • IP Evaluation: With four transceivers brought to the VNX connector, the card can be used to evaluate designs based around high speed serial interfaces. • Education: The flexibility of the FPGA paired with high density I/O makes this card suitable for a variety of applications and educational opportunities. • Processing: The PolarFire device supports a multi core 64-bit RISC-V processor subsystem. Paired with the FPGA fabric, the SoC is ideal for exploring embedded designs and tradeoffs between software and hardware solutions The card supports the Microsemi PolarFire MPFS250T-FCVG484EES device.