Processor Board in the EUI CEB. At the bottom of the board there are gigabytes of SDRAM for the One-Hour-Queue (OHQ) seen as eight blocks, and at the very bottom in the middle is the flash memory. The Spacecraft Output Buffer (SOB) is located in the middle left as six blocks. The Processor Board FPGA is at the centre with the UT699 CPU to the right. The two components to the top left are the MRAM. The next four components (two small, two large) on the top right are the CPU SRAM.