ship from Japan Chipset / Socket / Standard] Build in Intel B365 / Socket 1151 / ATX CPUIntel Socket 1151 9th / 8th Gen Intel Core, Pentium Gold and Celeron Processors Supported Memory] 4 slots (64GB max) DDR4 2666/2400/2133 MHz Non-ECC, Expansion slot] 1 x PCIe 3.0/2.0 x16 (x16 mode) / 1 x PCIe 3.0/2.0 x16 (max at x4 mode) / 4 x PCIe 3.0/2.0 x1 Storage] 6 x SATA 6Gb/s port(s), gray Interface] 8 x USB 3.1 Gen 1 port(s) / 6 x USB 2.0 port(s) OS] Windows 10 64-bit External Dimensions] ATX Form Factor 12.0 inch x 8.7 inch ( 30.5 cm x 22.1 cm )