Turris MOX is a unique network device.
The Turris MOX contains the usual set of pins (I2C, GPIO, …) but also the unique MOXTET bus. The MOXTET bus allows you to extend the MOX with various modules. It provides access to faster buses like PCIe or SGMII.
The MOX is based on the Marvell Armada 3720 dual core armv8 CPU clocked at 1 GHz and contains either 512M or 1G of RAM. Storage-wise it features one micro SD slot and 8 MB SPI NOR Flash that contains a U-boot and rescue system.
The CPU in Turris MOX has two network interfaces. eth0 - the first one - is connected directly to the Gigabit Ethernet port on the CPU module. eth1 - the second one - is 2,5 GBit and passed through the MOXTET. If you have MOX D, then your SFP is eth1 directly and able to do up to 2,5 Gbit.
Price and availability of MOX series devices
MOX A (Basic) is a universal network microcomputer with Gigabit connectivity and a USB 3.0 port, and is the basic building block of every MOX set.
MOX B (Extension)
The MOX B allows you to add more hardware to your configuration. It contains an mPCIe slot for a compatible Wi-Fi card, disk controller or LTE modem. If you choose to install an LTE modem, the MOX B features a SIM card slot that you can use.
MOX C (Ethernet)
The MOX C module contains a four-port manageable switch for Gigabit Ethernet.
MOX D (SFP)
The MOX D module contains an SFP connector for an optical connection (with speeds of up to 2.5 Gbps) or compatible adapters.
MOX E (Super Ethernet)
The MOX E module is an ideal choice if you need more Ethernet ports to connect devices to your network. It has twice the width of the other modules and contains an eight-port manageable switch for Gigabit Ethernet. Unlike in the MOX C module, the SGMII bus is not terminated in the MOX E module and it is possible to connect up to three MOX E modules in a row.
MOX F (USB)
The MOX F module expands your configuration with more USB 3.0 ports with transfer speeds of up to 5 Gbps that you can use to connect external drives, TV tuners and other devices.
MOX G (Super Extension)
The MOX G module with an mPCIe slot allows you to connect a compatible Wi-Fi card to achieve significantly higher speeds than SDIO (we recommend the original mPCIe Wi-Fi add-on). It also has a SIM card slot for users who are considering an mPCIe LTE modem. MOX G has the same features as MOX B. Additionally, it has a pass-through PCIe bus, which means that it can be used together with the MOX B or MOX F.
Turris MOX uses 1.8 V logic! Connecting to it to common devices with higher voltage logic will most likely destroy your item.