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ASRock B450 Steel Legend Socket AM4/ AMD Promontory B450/ DDR4/ Quad CrossFireX/ SATA3&USB3.1/ M.2/ A&GbE/ATX Motherboard

  • Based on 2,892 reviews
Condition: Used - Very Good
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Availability: Only 10 left in stock, order soon!
Fulfilled by Computer Headquarters, Inc

Arrives Friday, Mar 13
Order within 21 hours and 17 minutes
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Features

  • CPU: Socket AM4, Digi Power design, 6 Power Phase design, Supports 105W Water Cooling (Pinnacle Ridge); Supports 95W Water Cooling (Summit Ridge); Supports 65W Water Cooling (Raven Ridge)
  • Chipset: AMD Promontory B450. OS - Microsoft Windows 10 64-bit
  • Slots: 6x PCI-Express 3.0 x16 Slots (one run at x8, three runs at x4, one run at x2), 4x PCI Express 2.0 x1 Slots
  • Supports DDR4 3533+ (OC)
  • 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)

Description

ASRock B450 STEEL LEGEND Socket AM4/ AMD Promontory B450/ DDR4/ Quad CrossFireX/ SATA3&USB3. 1/ M. 2/ Age/ ATX Motherboard

Brand: ASRock


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: Socket AM4


Chipset Type: AMD B450


Memory Clock Speed: 45 GHz


Platform: Windows 10


Model Name: B450 STEEL LEGEND


Memory Storage Capacity: 64 GB


Processor: ‎45 GHz


RAM: ‎DDR4


Memory Speed: ‎45 GHz


Wireless Type: ‎Bluetooth


Number of USB 2.0 Ports: ‎2


Brand: ‎ASRock


Series: ‎B450 STEEL LEGEND


Item model number: ‎B450 STEEL LEGEND


Operating System: ‎- Microsoft


Item Weight: ‎0.071 ounces


Product Dimensions: ‎14.2 x 12 x 3 inches


Item Dimensions LxWxH: ‎14.2 x 12 x 3 inches


Number of Processors: ‎1


Computer Memory Type: ‎DDR4 SDRAM


Batteries: ‎1 CR2 batteries required. (included)


Manufacturer: ‎ASROCK


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎February 22, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Still working perfectly in 2025
I bought it in 2021 it was beautiful and working fine except for the battery was corrupted which delete the bios at every time you start the PC it was challenge but I fixed it by replacing the battery. other features working fine
Reviewed in the United States on July 28, 2025 by SAYED MOHAMMED JAWAD

  • Make sure to update your BIOS!
This is a great B450 board, but there are some important things I want to stress for potential buyers: 1. I have received 2 of these boards at this point (I mistakenly RMA'd the first board - more on that below) and both boards arrived Ryzen 3000 ready, with stickers on the box advertising them as such. Both were able to post with my Ryzen 5 3600 without issue. As long as you ensure that you're buying from Amazon and not one of the 3rd party retailers, you should almost be guaranteed to receive a Ryzen 3000 ready example. 2. If you're using this board with an M.2 SSD, note that there is a protective piece of plastic on the thermal pad on the underside of the M.2 heatsink. I didn't notice this when I first set up my build, and only noticed it the second time because I laid the heatsink upside down whilst installing my SSD. 3. Make sure to update your BIOS immediately! The reason I RMA'd my first board is because when my RAM was clocked at any speed above 3000mhz (it's rated for 3400), my audio would crackle and cut out. I initially assumed this was due to faulty onboard audio and RMA'd. Upon setting up my second example, I went straight into Windows without overclocking my RAM (it defaults to 2133mhz) and noticed 0 audio issues. Went back into the BIOS, overclocked, boom, audio issues were back. I did a bit of digging and found that the old BIOS that these boards ship with (circa July 5th) is known for having audio issues when using XMP. After updating to the most recent BIOS from ASRock's website, I now have 0 audio issues running my RAM at 3200mhz (I wasn't able to post at 3400 on the old BIOS, and I haven't attempted it yet on the new BIOS). Besides all that, the final point I have is that if you're interested in this board for its RGB capabilities, I will warn you that the LEDs on the top of the chipset heatsink are extremely bright. There isn't any kind of diffuser on them, so if your PC is below you (mine is to my left on the bottom shelf of a bookshelf), they will constantly be noticeable in your peripheral vision. However, using ASRock's software, you can actually customize each individual LED on both the chipset heatsink and rear I/O cover, and you can disable those top LEDs whilst keeping the lower LEDs active. Personally I prefer to disable the RGB altogether, but I figured this was worth mentioning. ... show more
Reviewed in the United States on September 3, 2019 by Patrick Tucker Patrick Tucker

  • Excelente
muy bueno
Reviewed in the United States on May 25, 2025 by Yarlenis Patricia

  • Great for the budget
Since the new CPU was not compatible with my old motherboard. It was reasonably priced and works great but just make sure to download the software if you want to use the rgb lights on the fans and might need get a fan controller. Since it has only one 3 pin header to control the fans. And no led connector for the led button. Idk about the wifi but has the option but I use Ethernet cable to connect mine never had issue. But overall evurbing works great and haven't had any issues. ... show more
Reviewed in the United States on April 20, 2025 by Gearcreed

  • Compatible and Desktop Ready with AMD RYZEN 3000
Like many people, I was searching for a decent motherboard compatible with Ryzen 3000. Well, this is it. The B450 Steel Legend (as well as the Micro ATX version, B450M) should come updated out of the box if you purchase new from Amazon Services. If you are hesitant to purchase this board, don't worry. So far, it has worked perfectly with my Ryzen 7 3800X and EVGA 2070 XC Ultra. Despite the subpar VRM and only using the Wraith Prism, my CPU temperatures only fluctuate between 50-60s during gaming with only two case fans from my NZXT H510. And everything has been perfectly cool during my gaming sessions. I don't even think I've gone over 75 degrees yet. Overall, the B450 Steel Legend is a good, affordable motherboard to get your Ryzen 3000 working out of the box. And having a PCI-E STEEL SLOT and single RAM retention clip/lock is a nice touch when using a big graphics card. Furthermore, I have not had any problems with the ASRock RGB software and the BIOS layout is very simple and direct. The B450 has been extremely easy to work with and build on. However, if you are expecting more premium features from this board, you should look elsewhere. For the price though, it is a great deal! Note: If you’re planning to use the Wraith Prism, I recommend adjusting the fan curves or purchasing another cooler if you want a silent experience out of the box. It does the job but with a little too much noise for my taste. ... show more
Reviewed in the United States on August 19, 2019 by David Goode David Goode

  • Great
Works great
Reviewed in the United States on May 12, 2025 by Butter bean

  • Asrock for the win
Using it for my plex server, this is my fifth asrock motherboard and they're always great quality at a great price.
Reviewed in the United States on February 15, 2025 by Chauncey Sims Jr.

  • Nice set
Very nice set
Reviewed in the United States on March 14, 2025 by Erin Tallant

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