We wrote about Gigabyte's Gemini Lake motherboards a couple of days ago, and now fellow mainboard maker ASRock is showing off a couple of Mini-ITX boards based on Intel's latest efficiency-first SoCs. The J4105-ITX and J4105B-ITX are similar in terms of overall capabilities, though differences in ports and slots separate the pair. The twins use soldered-in, four-core, four-thread Intel Celeron J4105 SoCs and have a pair of DDR4 SODIMM slots supporting up to 8 GB of 2400 MT/s memory. Like Gigabyte's Gemini Lake boards, ASRock's fraternal twins bear no fans.
The Celeron J4105 has Intel's UHD Graphics 600 IGP, which is capable of hardware-accelerated 4K H.265 encoding and decoding. Both boards have a reasonably-modern HDMI 1.4 port and a VGA connector for old-school analog video. The J4105-ITX adds a DVI connector and can drive three monitors at once. The HDMI port supports 4096×2160 output at 30 Hz, but the other display connectors are constrained to substantially lower resolutions.
Both motherboards have Gigabit Ethernet ports, though neither one has integrated Wi-Fi. The J4105-ITX has an E-keyed M.2 slot for adding a Wi-Fi card. Users can install full-length PCIe expansion cards in the J4105B-ITX, though bandwidth is limited to two lanes of PCIe 2.0. The J4105-ITX, on the other hand, has a standard PCIe 2.0 x1 slot. The B-model can support two SATA drives, while the other unit gets four SATA connectors. Both boards have a variety of pin headers for adding additional audio jacks, USB ports, and serial COM ports.
As for rear I/O, both boards have two USB 3.0 ports, one USB 2.0 port, two PS/2 connectors for legacy keyboards and mice, a serial port for "legacy-er" hardware, and audio jacks. The J4105B-ITX adds in a parallel port, while the standard unit gets an S/PDIF optical audio output and extra audio jacks. There are some other minor differences between the boards, so interested buyers should make sure to give their spec sheets a good look before deciding between the pair.
ASRock didn't provide any pricing or availability information for the J4105-ITX and J4105B-ITX motherboards. Both models appear to target embedded applications, so prospective buyers might have to do some digging to find them.