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ASRock - Z370 Extreme4 ATX LGA1151 Motherboard

( 4.6 Average / 21 Ratings )




Part #

Z370 Extreme4
(or) 90-MXB5U0-A0UAYZ


Black / Silver

Form Factor


CPU Socket



Intel Z370

Memory Slots

4 x 288-pin DIMM

Memory Type

DDR4-2133 / 2400 / 2666 / 2800 / 2933 / 3200 / 3600 / 3733 / 3800 / 3866 / 4000 / 4333

Maximum Supported Memory

64 GB

RAID Support


Onboard Video

Depends on CPU

CrossFire Support


SLI Support


SATA 6 Gb/s


Onboard Ethernet

1 x 1000 Mbit/s

Onboard USB 3.0 Header(s)


Completed Builds Using This Part

See All Completed Builds


Prices for this part are not available.

Price History (Excluding Tax) History:


KevinNovak 40 points 17 months ago

Awesome. Was looking for a relatively cheap motherboard, and this one has everything I need and nothing that I don't.

Saeb 8 points 16 months ago
from completed build ColdFire

Great value. This motherboard has everything I need plus good overclocking capability and doesn't have anything I don't need. The build quality is very good and comes with reinforced graphics card slots which does a very good job of holding the massive FTW3 in place without any noticeable sag. It also has modest RGB lighting out of the box and an RGB header which is nice.

It's been able to provide very good consistent voltage to the Coffee Lake with modest LLC to help achieve a stable 5GHz.

The only slightly annoying things were:

  • The red dual BIOS LED that can't be disabled.

  • The M.2 (Key E) slot was almost impossible to find and very tricky to use. There was no mention of it anywhere in the manual except that the motherboard has it. After half an hour of going inch by inch with a flashlight I found it behind the IO shroud. Screwing in a wireless module with that little space and not even being able to hold the screwdriver straight due to the shroud was very tricky. I definitely recommend installing that before installing the mobo inside the chassis.

MatD 6 points 15 months ago
from completed build Gaming & Editing Rig

Amazing price for all the features I needed. It has 2 m2 slots which is handy

KASPA 7 points 14 months ago
from completed build Intel I5 8600k build

What can I say about this motherboard? Best price/feature for sure. It has everything I need and it has a simple to understand BIOS. I can even regulate my 3 pin fans using the DC mode.

sorin1992 7 points 14 months ago
from completed build The Coffee Titan

Really good motherboard at a good price. It has everything I need!

skyattbapbap 12 points 12 months ago
from completed build Big Fish Build

Sweet motherboard, definitely a 'budget-y' board for 8th Gen Intel. RGB LED's look great and are bright enough and has a nice looking BIOS and really good IO ports (No rear USB 2.0 at all!)

limilkoonox 13 points 12 months ago
from completed build Jedi Master Wilson

Awesome board. Great aesthetics, bright RGBs, good audio. A little pricey for not offering onboard WiFi but again this was shortly after Coffee Lake launch and 370 boards had less options to choose from.

goodsmelly 24 points 11 months ago
from completed build Eris

I used black nail polish to cover the ridiculously bright red LED. Other than that all good

jalily 7 points 11 months ago
from completed build Dreamcast

I chose this motherboard because it's a very cheap Z370 motherboard and it has all the features I need. Also, it has 12 power phases. However, I have some complaints with this motherboard:

  • The red dual BIOS LED cannot be disabled. It emits a very strong red light and it's annoying when playing or watching movies with the lights turned off. I'm not sure if there's a workaround for this.

  • It only comes with one RGB header, which is positioned at the bottom. It would be great if they were to add another one at the top.

(July 25, 2018 update: As of this writing, the red dual BIOS LED has been turned off after updating to the latest firmware. Thanks, AsRock!)

Spyder756 14 points 11 months ago
from completed build Battle Cruiser Operational

It's a sharp-looking, high-performance board. My only complaint is the lack of bluetooth/wifi, but I knew what I was getting myself into when I bought it.

I really like the gunmetal theme that Z370 boards seem to have adopted -- in fact, it was the color that inspired the rest of this build!

Also, the reviews aren't lying: this board really does have some primo on-board audio. By no means am I an audiophile, but it undeniably produces better sound than any platform I've used in the past.