Key Specifications:

1. CPU Socket: LGA 1151 (for 6th & 7th Gen Intel Core/Pentium/Celeron)
2. Chipset: Intel Z270
3. Form Factor: ATX
4. Memory: 4x DDR4 DIMM slots, Dual Channel, up to 64GB, speeds up to 3866MHz (O.C.)
5. Storage: 2x M.2 Socket 3 (PCIe or Optane mode), 6x SATA 6Gb/s, RAID 0/1/5/10 support
6. Expansion Slots: 2x PCIe 3.0 x16, 4x PCIe 3.0 x1 (supports AMD CrossFireX)
7. Networking: Realtek Gigabit LAN
8. Audio: Realtek ALC887 8-Channel HD Audio with audio shielding
9. Rear I/O: HDMI, DVI-D, 4x USB 3.0, 2x USB 2.0, PS/2, LAN, Audio Jacks
10. Internal Connectors: USB 3.0 headers, USB 2.0 headers, TPM header, etc.
11. Features: 5X Protection III, Aura Sync (LED Illumination), Fan Xpert 3, UEFI BIOS 

This motherboard offers robust features for mainstream builds, focusing on stable overclocking, fast storage, and multi-GPU setups without SLI.