The Prime X299-A ATX Motherboard from ASUS comes equipped with an LGA 2066 socket and Intel X299 chipset to support the performance from your Intel Core X-Series processor. The motherboard is armed with eight DDR4 memory slots along with two PCIe 3.0 x4 and three PCIe 3.0 x16 slots. With an optional Intel Core i9 processor installed, the motherboard can fully utilize all memory banks and operate the PCIe 3.0 x16 slots in a x16, x16, and x8 configuration. For storage, it comes outfitted with eight SATA connectors and two M.2 slots for accommodating PCIe- or SATA-based SSDs.
The ASUS Prime X299-A motherboard connects to your printers, external storage drives, and other USB devices via its four USB 3.0, two USB 2.0, and two USB 3.1 ports. Both of the USB 3.1 ports feature up to 10 Gb/s transfer rates, and one of these ports has a USB Type-C interface, which lets you connect a USB-C cable on the first try. Other notable connections include a Gigabit Ethernet port and six audio jacks that are powered by a Realtek ALC S1220A audio processor. The motherboard also has internal I/O headers, so you can provide your system with additional USB 3.1, USB 3.0, and USB 2.0 ports as well as a Thunderbolt 3 port with an add-on PCIe card.
ASUS helps you overclock your unlocked Intel Core X-series processor by offering liquid-cooling support and providing ASUS PRO Clock II technology. Aside from enhancing the processor's performance, Aura Sync is on board to illuminate the insides of your case with RGB LEDs. Additional RGB LED strips can be installed and synced to the built-in LEDs via two Aura RGB headers.
- Automated tuning utility optimizes overclocking and cooling profiles
- Fans stay quiet for everyday computing, and deliver optimal airflow when the system is crunching through CPU or GPU-intensive tasks
- Stress test allows users to optimize and overclock for CPU or memory-centric workloads
- TurboV Processing Unit (TPU) is an automated system-tuning utility for fine-tuning voltages, monitoring system stats, and adjusting overclock parameters
- Energy Processing Unit (EPU) provides system-wide power savings by automatically optimizing power consumption and offering an Away mode, which shuts down unused I/O controllers
- Fan Expert 4 is compatible with liquid- and air-cooling solutions and intelligently configures all parameters with a single click
- Digi+ Power Control delivers real-time control over voltage droop, switching frequency, and power-efficiency settings to fine-tune CPU voltage regulation
- Turbo Core app lets you assign applications to specific processor cores
- UEFI BIOS has EZ and Advanced modes to help you find the system's settings, quickly and easily
- Optimized trace paths for the memory banks help with time-aligned signaling and minimal crosstalk, enabling support for fast memory speeds
- ASUS PRO Clock II technology extends CPU and memory overclocking margins by enhancing voltage and base-clock overclocking controls
- M.2 slot supports up to 32 Gbps data-transfer speeds via PCIe 3.0 x4
- M.2 heatsink helps reduces temperatures by up to 68°F / 20°C for M.2 drives
- Virtual RAID on CPU (VROC) supports up to four M.2 drives configured in a bootable RAID array via an optional ASUS Hyper M.2 X16 card
- Intel Optane memory ready for accelerating attached storage drives
- USB 3.1 header for supporting additional USB 3.1 ports
- Thunderbolt 3 ready with an onboard header that supports a user-supplied ThunderboltEX 3 card
- Intel Ethernet port with LANGuard protection and Turbo LAN optimization provide high TCP and UDP throughputs for fast, smooth data transfers
- SafeSlot design and additional solder points to support heavy graphics cards
- Dedicated 3D mounts on the motherboard makes installing 3D-printed parts easy