The NanoPi R4S is the latest single-board computer (SBC) by FriendlyElec, and one that packs dual Gigabit Ethernet. The device also includes a Rockchip RK3399 chipset, up to 4 GB of RAM and two USB 3.0 Type-A ports - all on a 66 x 66 mm board.
https://www.notebookcheck.net/NanoPi-R4S-A-new-Raspberry-Pi-alternative-with-dual-Gigabit-Ethernet-and-up-to-4-GB-of-RAM.504070.0.html