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Asus - X99-A/USB 3.1 ATX LGA2011-3 Motherboard

( 4.4 Average / 8 Ratings )




Part #

X99-A/USB 3.1

Form Factor


CPU Socket



Intel X99

Memory Slots

8 x 288-pin DIMM

Memory Type

DDR4-2133 / 2400 / 2666 / 2800 / 3000 / 3200

Maximum Supported Memory


RAID Support


Onboard Video


CrossFire Support


SLI Support

3-way SLI

SATA 6 Gb/s


SATA Express


Onboard Ethernet

1 x 10/100/1000 Mbps

Onboard USB 3.0 Header(s)


Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
SuperBiiz $229.99 Out of stock $229.99+
Newegg Marketplace $439.89 +FREE s/h $439.89

Price History (Excluding Tax) History:


jm1289 11 points 25 months ago
from completed build New Gaming machine

All the bells and whistles of more expensive board without the price tag. Legendary ASUS build quality.

Charlielavoy 15 points 22 months ago
from completed build Valentina

I don't overclock, and my needs are relatively simple, so I didn't see the need to get a crazy deluxe board with all sorts of extra fluff. I wanted expand-ability to USB 3.1, and more importantly, to Thunderbolt. I really wanted the M.2 slot, so that's awesome.

So far this board is completely stable and reliable. Setup was super easy. I don't tweak a ton, but if I did the BIOS looked really straight-forward and intuitive for that sort of thing.

I would echo some people's complaints about not enough fan headers, and the few that there are being awkwardly placed. I could have used like two more at least. I'm probably going to have to get a fan controller.

Another complaint is that only 3 of the 4 PCIe x16 slots support PCIe 3.0. Just through the way everything worked out with my build and all the other components I'm including, that second x16 slot from the top would have been the best place for my GTX 980 Ti, but that was PCIe 2.0 only on this board. Even if there is some greater technical constraint keeping them from having all four x16 slots at PCIe 3.0 rather than 2.0, I feel like they would be better served putting the 2.0-only slot as the 3rd from the top, rather than 2nd. That way, since most double-slot graphics cards have their connections along the top, the bulk of the card would hang down, covering the 2.0 slot, rather than having the 3.0 slot wasted.

Matrinix 8 points 22 months ago
from completed build Silent Air Cooled X99 Build

Works flawlessly so far. Looks clean. It had most of the features I wanted. The only thing I would add is more control over DC case fans, but I haven't really seen any motherboards that offer that.

elmaska 6 points 21 months ago
from completed build ELMSK Cucumber Mark-III

Great MB with support for UBS3.1, M.2, OC, and many many more. I only had an issue when trying to update BIOS. Also some DIMMs configurations are not well supported.

davfo 6 points 20 months ago
from completed build Dorothy

Pretty happy with this board. Lots of room for expansion. The BIOS is easy to navigate and fine tune as you please. Very stable.

nostrocrompt 44 points 18 months ago
from completed build Tobias... you blowhard!

This board does everything I need it to, easy to work with in OCing, and has given me zero issues since I purchased it.

Infinimax 13 points 10 months ago
from completed build Blackbirdo

Probably not the best X99 motherboard in the line up. However, if you are looking for a reliable board with loads of features and options on a budget X99 build. Look no further. I didn't care much for the Asus AI suite software at first, but over time I've come to rather enjoy the ease of use for adjusting fan control, overclocking and monitoring my system.

click2vasu 5 points 6 months ago
from completed build For 3d And Video Editting

Good one.