It's a bit expensive (listed at $250 on Newegg and $290 on Amazon), but I recommend the Fatal1ty X99M Killer from ASRock. This particular board was reviewed by Tom's Hardware in December 2014. It received "Tom’s Hardware Approved Award"
It has the following specs:
- 4x288 pin slots for DDR4 memory modules.
- Supports up to 64GB of RAM.
- 2 x PCI Express 3.0 x16 Slots (a third x16 slot is PCI Express 2.0)
- 10x6Gb/s SATA ports
- 6 USB 3.0 (2 Front, 4 Rear), 8 USB 2.0 (4 Front, 3 Rear, 1 Fatal1ty Mouse Port)
- Dual gigabit lan ports
- UEFI Bios and the ability to enter into Bios automatically on the next restart because:
Restart to UEFI
Fast Boot is so fast that it is impossible for users to enter the UEFI setup utility during POST. Therefore, ASRock Restart to UEFI technology allows users to easily enter the UEFI setup utility automatically when turning on the PC next time. It is designed for those who constantly need to enter the UEFI setup utility.
This is a micro ATX board. It'll fit in pretty much any case you can throw at it. The concern with a smaller case (if you stillstick with the micro ATX) will be how well a modernlarge video card fits.