Hi @Jesse_P ,
For a 100Hz VR application, I would suggest looking at the mosaic-H (dual antenna) as this would give you better vehicle heading and attitude information in real time.
Sadly we (SparkFun) don’t have a mosaic-H product. But there are several out there.
Have a good think about your requirements and data rates. Will a single UART meet your needs? Or do you need the additional speed of Ethernet-over-USB or true Ethernet? Perhaps you need multiple interfaces, say UART / virtual-UART-over-USB / TCP (over Ethernet) for NTRIP plus another UART / TCP connection to return the position and attitude information to the laptop? The mosaic-H itself supports all these options. The available interfaces will guide you to one vendor solution over another.
My advice would also be to avoid WiFi if possible and use hardwired interfaces for integrity, reliability and known well-understood throughput. The SparkFun RTK mosaic-X5 uses an ESP32 as an Ethernet to WiFi bridge. We do see throughput issues and packet errors when using WiFi to update the X5’s firmware. It works, but it is nowhere near as clean as Ethernet or Ethernet-over-USB.
I hope this helps,
Paul