DFI GH551 3.5" AMD Ryzen Embedded SBCs with up to Four DP++ and Triple GbE

Signage walls, operator desks and gateways often need several screens and several networks from a board small enough to hide behind a display. The DFI GH551 series is built for that brief: a family of 3.5 inch SBCs on AMD Ryzen Embedded processors with up to four DP++ outputs, three GbE ports and a single 12 V DC input.

Every GH551 shares one layout. One DDR4-2400 SO-DIMM socket takes up to 16 GB in single channel, with ECC or non-ECC modules, and AMD Radeon Vega Graphics drives DP++ outputs at up to 4096 x 2160 at 60 Hz and an LVDS connector at up to 1920 x 1200 on the builds that use it. Three GbE ports on Realtek RTL8111HN/RTL8119I controllers, two USB 3.1 Gen 2 and one USB 2.0 sit on the rear, with an RS-232/422/485 port, 8-bit DIO, SATA 3.0 and Realtek ALC888S audio inside. Expansion is a full-size Mini PCIe socket, an M.2 2280/2242 M key for a SATA or PCIe SSD and an optional Nano SIM slot.

The -5 to 65 °C builds cover the range: the GH551-BC1-R1505G (two DP++ plus LVDS), the GH551-BC1-R1606G (three DP++), the GH551-BC1-R2312 (dual-core R2000, two DP++ plus LVDS), the GH551-BC1-R2314 (quad-core R2314, three DP++ plus LVDS), the GH551-BC1-R2514 (eight-thread R2514, four displays), the GH551-BC1-V1202B (three DP++ plus LVDS) and the GH551-BC1-V1605B (eight-thread, four DP++). The -30 to 80 °C builds are the GH551-EC1-R1606G with three DP++, the GH551-EC1-V1404I with four DP++ and the GH551-EC1-V1605B with four DP++.

Power is a single 12 V DC input on a 4-pin right-angle connector, with a DC jack or vertical 4-pin connector on request; DFI quotes 16.2 W typical and 28.44 W maximum for the V1605B. Each build ships with a heatsink sized to its temperature range, 35.0 mm for -5 to 65 °C and 44.9 mm for -30 to 80 °C, and storage is rated -40 to 85 °C. Firmware TPM 2.0 is standard with discrete TPM 2.0 as an option. The boards measure 146 x 102 mm, support Windows 10 IoT Enterprise (64-bit) and Linux, carry CE and FCC Class B marks and are RoHS compliant.