ASRock has revealed the first mini-STX motherboard based on Intel's H110 chipset.
First rumoured in January of this year, the H110M-STX is an early example of Intel's new tiny 5x5 form factor.
Other manufacturers such as MSI and ECS have also released mini-STX products including mini PCs. All the boards are limited to 65W CPUs, although this does include the likes of Intel's non K-edition Core i7-6700, which supports Hyper-threading.
Mini-STX motherboards use standard LGA1151 CPU sockets and mounting mechanisms and use the same mounting hole layout for coolers.
The H110M-STX supports M.2 SSDs via it's PCI-E x4 Gen 3.0 M.2 port, with an underlying M.2 Key E port for Wi-Fi and Bluetooth modules.
It also sports three USB 3.0 ports in the form of two standard Type-A ports, and one in the shape of a Type-C connector - yes it's USB 3.0 and not full USB 3.1.
The top side of the PCB appears to only offer M.2 support for storage, but underneath there are two SATA 6Gbps headers that support combined power and data adaptors.
All mini-STX boards use SODIMM/laptop DDR4 memory and are powered by a DC 19V adaptor, with 120W adaptors required for 65W CPUs and 90W required for 35W CPUs. They're also supported by upcoming cases from Akasa and SilverStone.
There's no word on pricing yet but you can see more information on ASRock's website