Asrock J4125-ITX - ASRock Super Alloy | Intel® Quad-Core Processor J4125 (up to 2.7 GHz) | Supports DDR4 2133/2400 SO-DIMM | 1 PCIe 2.0 x1, 1 M.2 (Key E) | Graphics Output Options: D-Sub, HDMI, DVI-D | 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps | 4 SATA3 | 4 USB 3.2 Gen1 (2 Front, 2 Rear) | Supports Full Spike Protection, ASRock Live Update & APP Shop

Asrock J4125B-ITX - ASRock Super Alloy | Intel® Quad-Core Processor J4125 (up to 2.7 GHz) | Supports DDR4 2133/2400 SO-DIMM | 1 PCIe 2.0 x16 (x2 mode) | Graphics Output Options: D-Sub, HDMI | 7.1 CH HD Audio (Realtek ALC887 Audio Codec), ELNA Audio Caps | 2 SATA3 | 5 USB 3.2 Gen1 (2 Front, 3 Rear) | Supports Full Spike Protection, ASRock Live Update & APP Shop

Asrock D1800M, Intel Dual-Core Processor J1800 + Micro ATX Motherboard | Supports 2x DDR3/DDR3L Long DIMMs | 1 PCIe 2.0 x16, 2 PCIe 2.0 x1 | Graphics Output Options: D-Sub, DVI-D, HDMI | Built-in Intel® 7th generation (Gen 7) graphics, DirectX 11.0, Pixel Shader 5.0 | 1x Printer Port Header, 1 x COM Port Header | 1 USB 3.1 Gen1, 6 USB 2.0 (3 Front, 3 Rear), 2 SATA2 | Realtek Gigabit LAN | 5.1 CH HD Audio