From $43.41 • 3 units available from Mouser Electronics
netduino go: STMicro 32-bit microcontroller; Speed: 168MHz, Cortex-M4; Code Storage: 384 KB; RAM: 100+ KB
netduino Plus 2: STMicro 32-bit microcontroller; Speed: 168MHz, Cortex-M4; Code Storage: 384 KB; RAM: 100+ KB
NETDUINO .NET-PROGRAMMAB PROGRAMMABLE MICROCONTROLLER
netduino 2: STMicro 32-bit microcontroller; Speed: 120MHz, Cortex-M3; Code Storage: 192 KB; RAM:60 KB