++++ You can buy the ASRock X299E-ITX/ac/A/ASRK Mainboard for a price of approx. 400 Euro (01/2018) and is thus already in the upper price segment of the Intel LGA 2066 motherboards.
The ASRock X299E-ITX/ac Intel LGA 2066 DDR4 SO-DIMM motherboard is well processed, offers in spite the small dimensions a high-end basic equipment and achieves extremely high OC results during our OC tests.
As basic equipment, the X299E-ITX/ac mainboard has a PCI Express 3.0 16x slot, six SATA3 ports, three fast Ultra M.2 32Gb/s slots, one USB 3.1 Gen2 Type-C, one USB 3.1 Gen2 Type-A, up to six possible USB 3.1 Gen1 ports (formerly USB 3.0), two possible USB 2.0 ports, two Gigabit LAN ports, 802.11ac WiFi, Bluetooth v4.0, 7.1 Purity 4 sound with content protection, analog sound output over three jacks, digital sound output via optical S/PDIF, four SO-DIMM DDR4 slots with Quad Channel support, ASRock A-Tuning software for easy Core i9 overclocking and controlling the fans in Windows, ASRock RGB LED lighting for external RGB stripes or the special RGB (water) cooler and much more.
All in all, the ASRock X299E-ITX/ac motherboard is an innovative power dwarf that frightens other high-end Intel LGA 2066 ITX motherboards!
Special thanks to ASRock for their support.
* All Intel LGA 2066 motherboard reviews since 01.10.2017 are based on an Intel Core i9-7900X CPU, MSI Radeon R9 280 Twin Frozr Gaming 3GB PCI Express 3.0 video card, 4x 16GB Crucial Ballistix Sport DDR4-2666 memory modules (or 4x Kingston HyperX 8GB DDR4-2400 CL15 260 Pin SODIMM modules), Cooler Master Silent Pro M 600W power supply unit and the following software configuration: Microsoft Windows 7 Ultimate and Windows 10 Pro, SiSoftware Sandra, Futuremark PCMark10, 3DMark and 3DMark06 (OC software is available in the Links & Downloads section). All benchmark results only offer a comparison among themselves for a rough motherboard performance comparison.