The new Mercury+ SA2 is for when you really need a lot of I/Os. It's our first module in the new Mercury+ form-factor, which adds a third 168-pin Hirose FX10 connector to the standard two found on Mercury modules. This doesn't come at the cost of increased size, though - the module is still a petite 74 × 54 mm. In terms of on-board computing power, the SA2 is equipped with an Altera® Cyclone® V SoC, with a dual-core ARM Cortex-A9 processor and FPGA fabric; to interface with these there are 258 I/Os, as well as 9 MGTs. Up to 2 GBytes of DDR3L SDRAM, 64 MBytes of quad SPI flash cater for memory needs, while interfaces on offer are PCIe® Gen1/Gen2 ×4, Gigabit Ethernet, 2 × Fast Ethernet, USB 3.0 and USB 2.0. In short: there's a lot on there.

Have a look here: Mercury+ SA2