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ASRock - Z77 Extreme4 ATX LGA1155 Motherboard

( 4.6 Average / 155 Ratings )




Part #

Z77 Extreme4
(or) 377895
(or) 90-MXGKX0-A0UAYZ
(or) Z77-EXT4


Brown / Black

Form Factor


CPU Socket



Intel Z77

Memory Slots

4 x 240-pin DIMM

Memory Type

DDR3-1066 / 1333 / 1600 / 1866 / 2133 / 2400 / 2800

Maximum Supported Memory


RAID Support


Onboard Video

Depends on CPU

CrossFire Support


SLI Support


SATA 3 Gb/s


SATA 6 Gb/s


eSATA 6Gb/s


Onboard Ethernet

1 x 10/100/1000 Mbps

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:


imi4tth3w 4 points 34 months ago
from completed build CSGO/FPS Build

one of the best motherboards for z77 and SLI. if you are looking at this now, probably one of the few options left. not a big fan of ASRock's driver website though. i just let windows 8.1 do its thing and didn't really bother with the extra stuff asrock offers on their website since this is going to a purpose/secondary rig that will only do csgo/fps. but i'll delve into the software optimization a bit later.

nxp 7 points 29 months ago
from completed build Mamba - May 2016 (Upgrade)

solid stuff, everything i need

Clintblackwood 3 points 26 months ago
from completed build First build in 2012

Unfortunately I had a lot of trouble with ASRock products and so I'm not a huge fan of them.

GolfJulietBravo 16 points 14 months ago
from completed build RedRig

Great board. It's not pretty but it's pretty awesome! Plenty of features that are practical. I'm a fan of ASRock boards.

Marinho 8 points 9 months ago
from completed build The Notorious

Best motherboard for the LGA1155 socket. It has alot of 3/4 pins for the fans, 2 PCIe x16 lanes, 4 RAM slots, 4 6GB/s SATA, 4 3GB/s SATA, it has that timer thing or whatever it's called, it's cool, also it has on/off and reset buttons on the MBO, great quality motherboard. If you're going for an LGA1155 build, you can not go wrong with this motherboard.

swayshops 7 points 1 month ago
from completed build PC1: Solidus

The mobo came with 1 case standoff missing the grounded holes (wording?), so I've always had a missing screw (didn't want to attach it for obv reasons). Other than that, worked as needed. Wasn't always a fan of the ASRock software that was used for the fan management.