AMD Socket FM2 Trinity APUs are already on sale, but Socket FM1 AMD Llano processors and motherboards are still well purchased. For this reason, we have again reviewed a socket FM1 ASRock A75 Pro4 motherboard, which we tested and overclocked with an AMD A8-3870K Black Edition APU. The FM1 motherboard is based on the AMD A75 chipset and offers four PCI Express slots, four USB3.0 ports, five SATA3 ports, one eSATA3 port, Gigabit LAN, 7.1 sound and much more.