Both the ROCKPro64 and the NanoPi M4 from 2018 has a x4 PCIe 2.1 interface. Same goes for almost all RK3399 boards that care to expose the PCIe interface.
They could’ve exposed more SATA ports and / or PCI lanes and decided not to do it.
And… let’s not even talk about the SFF 8087 connector that isn’t rated to be used as an external plug, you’ll likely ruin it quickly with insertions and/or some light accident.
Both the ROCKPro64 and the NanoPi M4 from 2018 has a x4 PCIe 2.1 interface. Same goes for almost all RK3399 boards that care to expose the PCIe interface.
This boards seems extremely poorly designed, have a look at the CPU specs: https://www.intel.com/content/www/us/en/products/sku/97926/intel-atom-processor-c3758-16m-cache-up-to-2-20-ghz/specifications.html
They could’ve exposed more SATA ports and / or PCI lanes and decided not to do it.
And… let’s not even talk about the SFF 8087 connector that isn’t rated to be used as an external plug, you’ll likely ruin it quickly with insertions and/or some light accident.