Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting

The Asus Prime X299-A II ATX Motherboard has proven to be an outstanding choice for my high-performance system. As an enthusiast seeking powerful performance and versatility, this motherboard has exceeded my expectations in every aspect. First and foremost, the compatibility with Intel X299 processors and LGA 2066 socket ensures optimal performance and future-proofing for my system. It supports a wide range of Intel Core X-Series processors, providing exceptional power and speed for demanding tasks such as gaming, content creation, and heavy multitasking. The Prime X299-A II boasts an impressive array of features. The robust VRM design and advanced power delivery ensure stable and efficient performance, even under heavy loads. The motherboard supports up to 128GB of DDR4 memory, allowing for ample capacity and exceptional speeds. One of the standout features of this motherboard is its extensive connectivity options. It features multiple PCIe slots, SATA ports, USB ports, and M.2 slots, providing flexibility for expansion and accommodating a wide range of peripherals and storage devices. The inclusion of USB 3.2 Gen 2 and Thunderbolt 3 support further enhances the connectivity capabilities, allowing for lightning-fast data transfer speeds and seamless connections with external devices. The build quality of the Prime X299-A II is exceptional. The motherboard feels solid and well-constructed, ensuring durability and longevity. The UEFI BIOS is user-friendly and offers extensive customization options, making it easy to fine-tune the system according to my preferences.

yea it survived from purchase to now even though i had 18-36 distributed denial of service attacks happening to me daily then finally after 2 yrs i found out this board does well with load balancing multiple adapters at once all network adapters power management turned off wifi + ethernet and im getting another ethernet for this board i figure i use this review to tell you to do this to all your network adapters and you set your slowest adapter to 10 and your faster adapter to priority 1 then any other adapter you have that is in between to any number in between and add a free noip dns to load balance the denial of service attacks they wont like that and change their ips to try again and eventually stop i also got this board after they fried my msi x299 gaming pro carbon ac motherboard and it is still great making this machine into a beast to handle these attacks if you get stuck in the process go look up in google how to change the priority order of the network adapters never disable adapters use a really fast ethernet cord in them connect all adapters to your network and organize them so you can load balance the attacks better this boards ethernet never went fast but the wifi adapter i got gave me full mbps so i put ethernet at priority 10 and wifi at 5 so i can put my thunderbolt 3 ethernet to priority 1 just need the thunderbolt 4 adapter to come in lol

This motherboard will not boot due to “USB Device in Overcurrent State Detected” error at boot. It just keeps cycling. I tried removing all USB connectors and devices, but the issue persists. I am really disappointed with this ASUS mobo. ASUS tech help team, there are literally thousands of comments on Google/reddit, can you guys comment and may be fix this issue with this mobo?

This motherboard is perfect for the average enthusiast. Plenty of storage slots, though one of them kind of has an odd mounting mechanic (see picture). The boot speed is great, about as fast as a laptop (with a m.2 boot drive), very durable and looks fantastic! I haven’t had any issues with the boards functionality yet, but be careful with changing things around in the BIOS if you don’t know what you’re doing.

Using on a 10900x i9 with 20 thread cores - works great, tested overclocking, with Crosair 2x32 gb rams on one slot on each side (still 6 free). Thermaltake 3-fan liquid cooler,TT 850 rgb fan on demand power supply, Asus 3 fan super 6gb graphics card with fan on demand(fan only runs when there is heat on both the graphic and the power supply) - RGB synced with TT's controller and i have to buy both the 3 pin and 4 pin rgb connectors for asus software to sync between all the devices (except ram from 32*2 crosair - which i am crazy about not to buy anything else) so far one thing i cannot figure out is to enable even the m.2. disks as standard, as it says bios does not support 1 TB WD black drives. i wanted to setup a raid 1 with 2 WD 1TB drives. both does not come down as Hard raids / even the disks are not readable.

In the past I've had very good results with Asus products, but the Prime X299A II boards are the exception, at least half of these that I've purchased have had dead memory channels. One of them the cause was obvious, missing pins from the CPU socket, but on the others I could see no visible damage yet it would not recognize memory in some channels. Never had this issue with other Asus boards.

Upgraded my pc recently. Works great but very temperamental when it comes to processor placement. Processor was placed the correct way but had to move it a hairs width a few times before PC officially started up.

I have 2 of them. I wish it had 2.5 Gbps ehernet and maybe wifi 6. Overall a nice board for this x10920k processor. Only problem is 1 SATA port doesn't work on both boards bought new

曲げてしまいました． 古い経験では，CPU側にピンがあり，ピンの間隔もそれなりにあったので，ピンが曲がっても直すことができました．この機種（LGA 2066）ぐらいになると，直せないです． それで，元のマザーと単純に置き換えることが確実にできる，という主旨で，現行機種ではなくやや古い機種ではありますが，何とかこちらで見つけて，購入．ちょっと値段が高かったと思いますが，単純置き換え，を優先しました． ところで，ASUSのマザーの場合，付属DVDからドライバを入れなければなりませんね．グラボなど拡張カードの場合は，ハードウェア付属のCDやDVDは古いので使うことはない，と経験上，思っています．しかし，ASUSのマザーの場合，ASUSサイトに掲載されているドライバはあくまでアップデートだけであって，まずは付属DVDを使ってね，ということのようです．

The CPU pins were all fine, all components working so far after a couple weeks of use. Instructions were pretty clear on the setup. I have some experience building PCs but by no means an expert, everything was pretty standard.

Fitted a treat on son's PC after trying other ones. This one finally fitted & worked well

Amazing service, great product. Shipping was fast and my brand new, sealed in box, X-299 ASUS motherboard runs perfectly as expected.

Great