add arrow-down arrow-left arrow-right arrow-up authorcheckmark clipboard combo comment delete discord dots drag-handle dropdown-arrow errorfacebook history inbox instagram issuelink lock markup-bbcode markup-html markup-pcpp markup-cyclingbuilder markup-plain-text markup-reddit menu pin radio-button save search settings share star-empty star-full star-half switch successtag twitch twitter user warningwattage weight youtube

Motherboard

ASRock B450M Steel Legend Micro ATX AM4 Motherboard

(30 Ratings, 4.4 Average)

Prices

Merchant Base Promo Shipping Tax Availability Total
$1953.43 +$615.41 s/h In stock $2568.84 Buy

* PCPartPicker may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. Learn more here.

Price Alert

Send an e-mail alert if the price drops to: $

(Note: Price alerts use your merchant selections and tax settings.)

Specifications

Manufacturer

ASRock

Part #

B450M Steel Legend

Manufacturer

ASRock

Socket / CPU

AM4

Form Factor

Micro ATX

RAM Slots

4

Max RAM

64 GB

Color

Black / White

Chipset

AMD B450

Memory Type

DDR4

Memory Slots

4

Memory Speed

  • DDR4-2133
  • DDR4-2400
  • DDR4-2666
  • DDR4-2933
  • DDR4-3200

SLI/CrossFire

CrossFire Capable

PCI-E x16 Slots

2

PCI-E x8 Slots

0

PCI-E x4 Slots

0

PCI-E x1 Slots

1

PCI Slots

0

Onboard Ethernet

1 x 1000 Mbit/s

SATA 6 Gb/s

4

M.2 Slots

2

mSATA Slots

0

Onboard Video

Depends on CPU

Onboard USB3.0 Headers

Yes

Supports ECC

No

Wireless Networking

None

RAID Support

Yes

Price History

    Reviews

    dannyohh
    • 53 points
    • 9 months ago

    looks beautiful and does its job. nice to have added features such as usb-c and rgb.

    dcly
    • 34 points
    • 29 days ago

    from completed build Inti

    Feature packed, cheap, performs great, easy BIOS and good looks.

    GoldenBunion
    • 22 points
    • 6 months ago

    from completed build First Build: AMD Micro ATX

    Lots of issues with RGB. I wasn't planning on using the RGB features, but whenever I tested it, the lights stayed on when the system was powered down. Can't for the life of me figure out what's wrong. Otherwise the IO is fantastic and its bios is easy to use (still garbage for RGB), and the two M2 slots is a nice bonus. (One M2 is for NVMe, other is regular SATA)

    Beesem
    • 21 points
    • 23 days ago

    from completed build 2019 Refresh

    I've had no problems with the motherboard. I read reviews of people having problems with RGB, or lights staying on when the system is shut down. My board came Ryzen 3000 ready, and I upgraded to the latest BIOS immediately. Set up was easy, RGB works, lights don't stay on when system is shutdown, memory worked at rated DDR4-3200 easily. The board looks absolutely beautiful, pictures don't do it justice. It has plenty of fan headers. All headers are in logical locations. BIOS is intuitive and easy to use. Audio quality both in and out is excellent. This is my first ASRock motherboard, but if it turns out to be a reliable motherboard for me long term it won't be my last.

    fourdegrees11
    • 16 points
    • 1 month ago

    from completed build Q300L "HAF" Console

    Came with "Ryzen 3000 Ready" printed on the box. Bios version was 2.5, compatibility with 3000 series CPUs was with bios version 2.1. This board feels and looks premium compared to boards like the MSI B450M PRO-VDH MAX (that one doesnt even come with a manual). If you need a B450M board under $100 this is a great choice. The RGB utility is simple to use, and works well. The board lights do stay on when the computer is off, unless you flip the PSU switch to off. I dont have a problem with that.

    Larswick
    • 15 points
    • 8 months ago

    from completed build Sweet 16 gaming build

    So far I am very impressed with this motherboard with the exception of their rgb software which needs some work. The motherboard has plenty of fan headers, rgb headers and two M.2 slots. I payed a little more than I wanted because this was a timed build.

    jaspergh
    • 15 points
    • 7 months ago

    Beautiful Motherboard. Would've liked more usb headers and pwm fan headers but there were solutions for that. bios are easy to use and the rgb is great although the software isnt great

    pauliedanger
    • 13 points
    • 3 months ago

    I am not an expert, but the board seems well designed. It was packaged very well. The feedback I got going into the build was "don't mess with mATX, those boards are cramped and difficult to work with.

    I have big meaty ogre fingers, and had no issues with fitment. Plenty of space for a AMD Wraith cooler and the RAM slots. the grey IO cover (not the IO shield that pops into the case, but the cover that comes up over the top of the IO elements on the board) looked chintzy and toy in photos, but not so on actual inspection. There is also plenty of clearance between that element and the rear case fan.

    The UEFI/Bios is very straight forward, even the advanced settings. I was fairly intimidated by the idea of changing settings in the UEFI, but it was very easy.

    The IO shield carries over the digital camo inspired graphic pattern from the board, but is not overwhelmingly '90's mall punk. There's also a fair bit of padding to allow for distance variance, which is nice.

    The "top" m.2 drive bay has plenty of clearance to be visible below a Wraith CPU cooler (though, if you get a 3rd party cooler, obviously, YMMV). Without pulling out the ol' measuring tape, the m.2 actually looks pretty well centered between the cooler and the backplate of my video card (Sapphire RX 580 Pulse).

    Three minor complaints:

    1. It might be my eyes failing me, but the front panel header is impossible labeling is impossible to decipher. And there is no information on the layout of the SATA ports (though, being a newb, I do admit that I don't know if it matters which SATA port is being used).

    2. I haven't done much digging, but it appears that aRGB support for the memory kit I purchased (Team T-Force Delta) is near non-existent on ASRock mobos.

    3. The LEDs mounted under the chipset cover (which is low profile enough to allow a video card to extend over top of it without any interference) are not well hidden. My case sits to my left facing right (so I'm looking at it from just off the case's front left corner) and I can see two bare LED's. Nit picky complaint, and a minor annoyance, but just giving a full rounded review.

    jumbology
    • 12 points
    • 5 months ago

    from completed build Micro Beast (STRO V2)

    Luck made it possible for me to get this board $20 off. Either way it’s worth every penny. Above average VRM for a mATX board, aesthetically pleasing heatsinks and RGB lighting, and very easy to use BIOS. Digital Camo is just the icing on the cake I love this board.

    Steroids
    • 10 points
    • 1 month ago

    from completed build Finally content

    Decent features for the price though power delivery and voltage options in the bios could be better. The lights seem to randomly decide whether they want to stay on when the computer is shut down or not, I've taken to just turning off my power supply after shutting down my computer so they're guaranteed to stay off.

    Builds Using This Part

    Sort

    add arrow-down arrow-left arrow-right arrow-up authorcheckmark clipboard combo comment delete discord dots drag-handle dropdown-arrow errorfacebook history inbox instagram issuelink lock markup-bbcode markup-html markup-pcpp markup-cyclingbuilder markup-plain-text markup-reddit menu pin radio-button save search settings share star-empty star-full star-half switch successtag twitch twitter user warningwattage weight youtube