The SoM-9x25 is a System on Module (SoM) based on the Atmel AT91SAM9x25 processor. Designed and manufactured in the USA, this wide temperature, fanless ARM9 400 MHz SoM has an Ethernet PHY included along with 6 serial ports with auto RS-485. It utilizes up to 4GB of eMMC Flash, up to 16MB of serial data flash, and up to 128MB of DDR2 RAM. A SoM is a small embedded module that contains the core of a microprocessor system.
The SoM-9307M is an ARM System-on-Module (SOM) type Single Board Computer (SBC) based on the Cirrus ARM9 EP9307 processor. This ARM9 core processor has an Ethernet MAC built-in along with 3 serial ports. It utilizes external SDRAM and includes MMU which allows it to run Linux Operating System. A SoM (System on Module) is a small embedded module that contains the core of a microprocessor system.