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ASRock B450 Steel Legend AM4 AMD Promontory B450 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard

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  • AMD Promontory B450
  • AMD Ryzen series CPUs (Matisse) support DDR4 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3533+(OC)/ 3200(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Picasso) support DDR4 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Summit Ridge) support DDR4 3466+(OC)/ 3200(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Raven Ridge) support DDR4 3466+(OC)/ 3200(OC)/ 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
ASRock B450 Motherboard and Its Product Box

ASRock B450 Steel Legend Motherboard

Powered by AMD B450 chipset, this motherboard supports up to 2nd generation AMD Ryzen processors of up to eight cores. This board looks great, featuring a camouflage-themed PCB, aggressive-looking heatsinks, and has onboard LED lighting that supports full spectrum of RGB colors with various effects, and can synchronize with other devices enabled with ASRock Polychrome. More than a pretty face, this B450 Steel Legend has quad DIMM slots supporting DDR4 3533+ (OC), two PCI-E x16 slots ready for AMD Quad CrossFireX, two M.2 slots, and two USB 3.1 Gen2 ports (rear Type-A + Type-C), so you have all essentials needed to build your new powerhouse. Moreover, this board is also constructed to be tough, with Super Alloy components, Full Spike Protection, and a PCI-E x16 slot covered by steel plate for better strength and less EMI.

If you're looking for a solid, budget-friendly yet feature-rich foundation for your dream system, look no further than ASRock B450 Steel Legend.

  • AMD AM4 Socket
  • Supports DDR4 3533+ (OC)
  • 2x PCIe 3.0 x16, 4x PCIe 2.0 x1
  • AMD Quad CrossFireX™
  • Graphics Output: DisplayPort and HDMI
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), Nichicon Fine Gold Series Audio Caps
  • 6x SATA3, 1x Ultra M.2 (PCIe Gen3 x4), 1x M.2, (PCIe Gen3 x2) and SATA3
  • 2x USB 3.1 Gen2 (Rear Type-A + C)
  • 6x USB 3.1 Gen1 (2 Front and 4 Rear)
  • Realtek Gigabit LAN
Steel Legend Logo B450 Motherboard Image with Numbers 1-8 Indicating Important Aspect/Components
  1. Ultra USB Power
  2. 2x USB 3.1 Gen2 10Gbps
  3. Gold Audio Jacks
  4. Nichicon Fine Gold Series Audio Caps
  1. AMD AM4 Socket Supports 105W Water Cooling Digi Power Premium 60A Power Choke Nichicon 12K Black Caps
  2. Dual M.2 Sockets
  3. PCI-E Steel Slot
  4. Built-in Addressable LED ARGB Header RGB Header
Tough As Steel True Legend Banner with Gears and Metalworking Graphics

Steel Legend represents the philosophical state of rock-solid durability and irresistible aesthetics. Built around the most demanding specs and features, the Steel Legend series aims at daily users and mainstream enthusiasts! Providing a strong array of materials/components to ensure a stable and reliable performance, these motherboards fulfill every task with style!

Closeup shot of RGB lighting in the dark
RULE YOUR OWN LIGHTING WAY WITH POLYCHROME RGB

Steel Legend motherboards deliver stunning performance and superior aesthetics to rule your own colorful lighting way! ASRock offers highly comprehensive control to smoothly utilize the built-in RGB LEDs or connected LED strips, CPU fans, coolers, chassis and any other compatible RGB devices. Devices can be synchronized across the Polychrome RGB Sync-certified line of accessories as well.

ASRock polychrome sync and polychrome RGB logos

The addressable RGB LED header supports a WS2812B addressable RGB LED strip (5V/Data/GND) with a maximum power rating of 3A (5V) and a max of 80 LEDs with a length up to 2 meters.
The RGB LED header supports standard 5050 RGB LED strips (12V/G/R/B) with a maximum power rating of 3A (12V) and lengths within 2 meters.

All the compatible RGB LED products from memory sticks to power supplies and cases
Closeup picture Type 2280 M.2 Slot on the Motherboard
A SOLID M.2-SOLUTION PERFORMER

Dual M.2 for SSDs That Supports Type 22110 M.2
The B450 houses two of the world's fastest M.2 slots. One slot delivers up to PCIe Gen3 x4 32Gbps transfer speed, the other one supports PCIe Gen3 x2 & SATA3 6Gbps mode.

M.2 Armor
Good M.2 SSD protection is important for longevity and stability. ASRock has provided a complete M.2 armor solution on the B450 platform that makes SSDs run perfectly at low temperatures.

Close up of the motherboard USB ports
Dual USB 3.1 Gen2 (Type-A + Type-C)

This motherboard has a pair of onboard Type-A and Type-C USB 3.1 Gen2 ports built on the rear I/O to support next-generation USB 3.1 Gen2 devices while delivering up to 10 Gbps data-transfer rates.

USB 3.1 Gen2 doubles the data transfer rate!
USB 3.1 Gen2 Chart two times faster than Gen1
USB 3.1 Gen2 Type-C doubles the charge speed!
USB 3.1 Gen2 Type-C two times faster than Gen1 Type-A
Chart showing the effects of Ultra USB Power
ULTRA USB POWER
ULTRA STABLE POWER

The +5V voltage on these motherboards is transferred from the +12V, supplying enough current to USB devices without dropping voltage directly from the PSU.

B450M
ANTISTATIC SHIELD

Protect your mouse and keyboard against static electricity. This especially lowers the chances of USB mouse lag or stuttering.

PURE AUDIO QUALITY

The USB speaker is best connected via Ultra USB Power ports to execute a pure current while offering high audio quality without distortion.

Closeup shot of the motherboard being split to show three layers with the middle being a glowing copper
2 oz Copper

This motherboard has been made with 2 ounces of copper inner layers. The copper materials for PCB layers were carefully selected to deliver lower temperatures and higher energy efficiency for overclocking.

Closeup of the power choke
PREMIUM 60A POWER CHOKE

ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

closeup of the pci-e steel slot on the motherboard
PCI-E STEEL SLOT

The advanced PCI-E steel slot packed with a solid cover prevents any signal interference with graphics cards. It also ensures that heavy graphics cards can be safely installed in the PCI-E slot.

Super Alloy Motherboard Graphic Text
XXL Aluminum-Alloy Heatsink
Close of the Aluminum Ally Heatsink

Extra-large, aluminum-alloy heat sinks effectively take away heat from the MOSFET and chipset so that your whole system may perform more stably.

Premium 60A Power Choke
closeup of the power choke

Compared to traditional chokes, ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Nichicon 12K Black Caps
Closeup of the Nichicon 12K Black Caps

Supreme 12K black capacitors with lifespans of at least 12,000 hours. Compared to other counterparts on high-end motherboards that merely have lifespans of around 10,000 hours, ASRock applied Nichicon 12K Black Caps that offer 20% longer lifespans and provide more stability and reliability.

I/O Armor

Closeup of the protective cover on the motherboard

A newly designed protective cover for all of the crucial parts near the motherboard's rear I/O serve to protect the motherboard from damage by static electricity.

Sapphire Black PCB

Closeup of the bottom-right of the motherboard showing the PCB

The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

High Density Glass Fabric PCB
A Graphic Comparing High Density Fabric versus Traditional

The motherboard's High Density Glass Fabric PCB design reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

2oz Copper PCB

B450M

Using only carefully selected copper materials for PCB layers, the 2oz Copper PCB delivers lower temperatures and higher energy efficiency for overclocking.

Full Spike Protection Logo, An Orange Shield with the Service Text
Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard's components from being damaged by these unexpected voltage spikes.

ASRock App Shop Compatible Media Logos
Live Update & APP Shop

The ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.


Learn more about the ASRock B450 Steel Legend

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Anonymous
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Solid board, some issues 8/1/2020 12:19:02 PM

Pros: Love the easy setup and the lighting. Looks great especially with the stock AMD Cooler

Cons: RGB software is trash.

Overall Review: RGB software freezes my computer for about 10 minutes after opening. Once open, it kind of works. Don’t let it auto run on start up. Also had an issue where it didn’t recognize my RAM. Took it out, put it in, worked again just fine. But overall the board does what I need it to do and looks great in doing so

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Not completely happy with this motherboard 7/31/2020 3:23:28 PM

Pros: Good RGB colors
Cool desinge of the motherboard
Works alright

Cons: Asrock RGB program doesn't work properly, you can't really personalize it how you want it.

Overall Review: I would give 5 eggs, but the design and the RGB colour was the main point to upgrade to this motherboard. It's kind of disappointing that it doesn't work as expected.

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Anonymous
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Failed to boot 7/19/2020 7:15:05 AM

Overall Review: Got this motherboard for a new build for my sibling, but it failed to boot. I checked with my other PC, and none of the other components failed. This was disappointing, and I can't even get a refund for it since we tossed the box before realizing this was defective. Bad experience, would not recommend.

Did you find this review helpful?
Manufacturer Response:
Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module (un-buffered).
• Reseat video card firmly and 6+6 PCIE power (if applied).
• Connect the monitor.
• Plug the 24 + 8 or 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Fantastic Board 7/15/2020 10:11:16 PM

Pros: -Works Flawlessly
- BIOs is pretty fantastic
- Great RGB options
- Looks Fantastic
- Two M.2 drives
- Love the way the SATA ports are set up, much easier to plug in multiple (in my case at least)
- More than enough fan headers, although I wish this had more ARGB headers like the new 550 boards, but nothing a splitter won't solve
- While the I/O shield isn't pre-installed, it's much more flexible and easy to install than many others.

Cons: -Really none that I can think of so far

Overall Review: I built my first rig back in November of last year, and have built 5 others for friends/family since, and finally just sold my first one to build myself a new one. When I first got started, I knew nothing about computers, outside the most basic of basic. So when it came to choosing a board, it seemed like the X-470 boards seemed to offer something special the B-450 did not, even though I had no idea what it may be lol. I'd also not heard of AsRock at the time, so I went with the ASUS ROG X-470 F.

Once I started building for friends who were on more of a budget, I started going with the ASRock B-450 Pro boards, which offer outstanding value, and immediately just liked the BIOs a lot more than what was supposed to be the much superior one offered by Asus. I'd also realized that none of what the X-470 chipset seemed to offer was worth the jump in price compared to the 450 for my needs. So when I started to look into parts for my own build, this was the easiest decision. I personally love the design of this. Everything from the RGB, the VRMs, heatsinks etc just look better to me on this board. This still allows me to do all the OC I care to do (not much besides enabling XMP and slightly boost clock speeds), easily in the BIOs, I was able to boot from my NVMe, and again, I just like the layout more than Asus's.

The only thing I give credit to Asus for is their software to control system stats/OC once you're booted into Windows does have more capability, looks better etc. But unless you're someone who's constantly tweeking all that, it doesn't matter. I haven't opened that software since the first day, when I opened it just to see lol. Everything runs just as stable and cool on this board, and in my opinion, it looks much better. So, until I come across some issue, ASRock has pretty much got me as a customer.

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Anonymous
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Sleek MOBO - My Thoughts 7/6/2020 5:37:17 PM

Overall Review: So far, I have been using this b450 board in my new rig for about a month. It has been holding up perfectly fine. The rgb lights aren’t necessary, but they don’t impact performance at all. The one issue I am having is with audio, specifically microphone input. Sometimes it just doesn’t pick up my voice when I talk, but I have decided to bypass that issue and order a USB condenser microphone so that the mic audio isn’t being directed through the onboard audio chipset. Since the board works great for everything except my microphone audio, I can definitely recommend this product, since I feel that this issue is most likely uncommon.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great motherboard will Recommend to others. 7/4/2020 11:41:26 AM

Overall Review: Great Mobo!

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Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great product 7/3/2020 9:10:37 AM

Pros: Installed without problems.
Very durable.
UEFI was easy to navigate.

Cons: Default setting for RGB is on even after shutdown. Can be changed in UEFI menu.

Overall Review: Great item, at decent price.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Great product, but had some issues 7/2/2020 10:30:48 AM

Pros: Easy to setup
Easy to find bios updates

Cons: USB didnt work for a while

Overall Review: Pretty good, but it had some parts that were not working as I would have hoped

Did you find this review helpful?
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