My Motherboard is GIGABYTE GA-H81M-D3V, which is usually taken in Build-to-Order PC in Japan, and mine is no exception of that. It features LGA1150 socket, 4 SATA ports, 1 PCIe x16 port, and some more PCIe ports.
Today (2017.Sep.28) my purchases on this PC has ended; I've upgraded to almost maximum.
CPU; (used to) Intel Core-i5 4440 (3.10/3.30GHz) - upgraded to Intel Core-i7 4790K (4.00/4.40GHz)
RAM; (used to) 4GB (for BTOs) - upgraded with I/O data DDR-3 12800 8GB, now got 12GB-512MB/s
GPU; (used to) on-board graphics, Intel HD Graphics 4600 - upgraded to GeForce GTX 1050
Display; Apple Studio Display (1024x768), BenQ GW2265 (1920x1080), iiyama ProLite xxxx(number unknown due to some stickers on them) (1920x1080)
HDD/SSD; TOSHIBA DT01ACA050 (500GB) - upgraded with SanDisk SSD (120GB)
Misc; got Logitech G13 Gaming Keyboard (Lefty), Macro-equipped mouse (left-click macro)