The ASUS X99-A is an Intel X99 (LGA2011-v3) ATX motherboard designed for high-end desktop platforms. It supports Intel Core i7 processors in the LGA2011-v3 socket and features quad-channel DDR4 memory architecture with 8 DIMM slots supporting up to 128GB of RAM at 3200MHz+(OC). The motherboard provides comprehensive expansion capabilities with 5x PCIe 3.0 x16 slots (supporting 4-way SLI/CrossFireX configurations) and 1x PCIe 2.0 x4 slot. Storage options include 8x SATA 6Gb/s ports with RAID 0/1/5/10 support, plus 1x M.2 PCIe 2.0 x4 slot for ultra-fast SSDs. Networking features Intel Gigabit Ethernet with LANGuard protection, while audio is handled by the Crystal Sound 2 system with premium audio components. The board includes USB 3.0 and 2.0 ports, with ASUS-exclusive features like 5-Way Optimization for automated system tuning, UEFI BIOS with EZ Mode, and Fan Xpert 3 for advanced cooling control. The durable design features ASUS Digi+ power delivery, stainless-steel back I/O, and reinforced PCIe slots for enhanced longevity.