Thanks for the detail description of the new Netduino 3 ethernet chip. I like descriptive post like this one, keep it coming. I will play with the Ethernet version once I'm through with the Wifi version. BTW, haven't looked at the datasheet of the Ethernet ASIX, can it achieve true 100Mbps throughput (or close to it) at the C driver level? What's the maximum SPI speed? I know all these answers are in the datasheet but I'm short on time so haven't had a chance to read through it.