Ahead of their launch later this year, to cater to the 7th generation AMD A-series "Bristol Ridge" APUs, with support for next-generation "ZEN" processors due in 2017, two GIGABYTE socket AM4 motherboards smiled for the camera. The two appear to be based on either AMD's entry-level A320 or mid-range B350 chipsets. Since the AM4 chips are true-blue SoCs with complete integration of chipsets, including what you'd normally call a southbridge or FCH; the "chipsets" in the AM4 platform are merely chips that add to the PCIe lane budget of the platform, and provide additional SATA and USB connectivity.The first of the two GIGABYTE AM4 boards is built in the narrow micro-ATX form-factor; featuring a single PCI-Express 3.0 x16 slot, two DDR4 DIMM slots, four SATA 6 Gb/s ports, and basic connectivity that includes 6-channel HD audio, one gigabit Ethernet connection, and 4-6 USB 3.0 ports. The second board is better endowed, and is likely a variation of the socket AM4 board that was earlier pictured this September. It features two PCI-Express 3.0 x16 ports (the second one could be electrical x4); and comes with two additional SATA 6 Gb/s and USB 3.0 ports compared to the other board.