MSI B450-A PRO AM4 Motherboard

Product code: 248176

Product features

  • Form factor: ATX
  • Socket: AMD AM4
  • Chipset: AMD B450
  • Memory: DIMM x 4 / Max RAM: 64 GB
  • AMD CrossFire x 2

Product features

  • Form factor: ATX
  • Socket: AMD AM4
  • Chipset: AMD B450
  • Memory: DIMM x 4 / Max RAM: 64 GB
  • AMD CrossFire x 2
Product information
Top features:

- Designed for cryptocurrency mining with support for multiple GPUs

- Take control of your cooling with liquid and fan connectivity

- Upgrade your storage with M.2 and SATA ports

Designed for cryptocurrency mining

The MSI B450-A Pro Motherboard is uniquely designed for mining cryptocurrencies, with enough PCIe slots for loads of graphics cards and a power system that will keep everything running, even during long mining sessions. There's also special BIOS options just for mining, to try and maximise your efficiency.

Take control of your cooling

If you're trying to mine the latest cryptocurrency, cooling is everything. Which is why the B450-A has six fan headers, connectivity for liquid cooling, and full fan controls. So you can create an extensive cooling system that's easy to adjust as and when you need it.

Upgrade your storage

Compatible with the latest M.2 storage, you can add a superfast SSD to your build - boot up in seconds and jump straight back into your latest project without having to wait ages as things load.

And because your SATA ports are freed up, you can pile up huge capacity hard drives and save all your files, important documents and images.

Technical specifications for MSI B450-A PRO AM4 Motherboard

Form factor ATX
Socket AMD AM4
Chipset AMD B450
Processor models supported AMD Ryzen processors
Operating systems supported Windows 10
Memory slots 4 x DIMM (Max RAM: 64 GB)
Memory standard DDR4
Multi-GPU support AMD CrossFire x 2
Cooling features Heatsink
Expansion slots - PCIe 3.0 (x16) x 1
- PCIe 2.0 (x16) x 1
- PCIe (x1) x 4
Storage slots - SATA x 6 (6 GB/s)
- M.2 x 1
Cooling - CPU fan 4-pin x 1
- Case fan 4-pin x 4
- Water pump fan 4-pin x 1
Power - 24-pin ATX x 1
- 8-pin ATX 12 V x 1
Buttons BIOS Flashback+
USB - USB 2.0 connector x 2 (supports additional 4 USB 2.0 ports)
- USB 3.1 connector x 1 (supports additional 2 USB 3.1 ports)
Other internal connections - TPM module connector
- Front panel audio connector
- System panel connector x 2
- Serial port connector
- Parallel port connector
- Chassis intrusion connector
- Clear CMOS jumper
- 5050 RGB LED strip 12 V connector
Video output - HDMI x 1
- VGA x 1
- DVI x 1
USB - USB 3.1 Gen 2 x 2
- USB 3.1 Gen 1 x 2
- USB 2.0 x 2
Audio 3.5 mm jack x 6
LAN Gigabit Ethernet port x 1
Other external connections PS/2 port x 1
Colour Black
Software included - MSI Mystic Light
- App manager
- Super charger
- Command centre
- Live Update 6
- Smart Tool
- RAMDisk
- X-Boost
- CPU-Z MSI Gaming
- Google Chrome
- Google Toolbar
- Google Drive
Box contents - MSI B450-A PRO AM4 Motherboard
- SATA 6 GB/s cable x 2
- Case badge
- I/O shield
- SATA cable labels
- M.2 screw x 1
- User manual
- Driver DVD
- Installation guide
Dimensions 346 x 269 x 65 mm (H x W x D)
Weight 1.3 kg
Manufacturer’s guarantee 3 years
Customer reviews

B450-A PRO AM4 Motherboard reviews verified by reevooReevoo

1 review

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(10 out of 10)


GB Good for the money
Works with no issues
Reviewer left no comment
Confirmed purchase: 07 January 2019
Published on: 04 February 2019
Price Promise, delivery & returns

You won’t get it cheaper. Our Price Promise.

Find it cheaper at any major retailer, online or instore, and we’ll match it.

If you find any of the UK’s 50 top retailers, including (but not Amazon Marketplace),, Argos, Asda, John Lewis or Tesco has the same item at a cheaper price, we’ll match it. Even if their price includes an offer-code discount, and even up to 7 days after you bought from us.

How to request a price match

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We’ll show you your current delivery options for this item in checkout. Subject to the time you order, and where you want delivery, these options will include:

  • FREE standard delivery in 3-5 working days
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Please note: if we’re out of stock of an item but getting more in, we indicate – on listings pages and the product page – how soon we can dispatch for delivery to you. In this case, please go ahead and order, and we’ll contact you later to confirm an exact delivery date.

Availability Checker

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To use our Availability Checker, simply:

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Whether an item you’ve bought is faulty or damaged, or you’ve changed your mind, it’s easy to get a refund.

Items you haven’t opened
Within 21 days of receiving an item you paid for online, on the phone, or in store you can return it for a full refund – provided your purchase is still in its original and unopened packaging. This promise is in addition to your statutory rights.

Items you’ve opened
Within 14 days of receiving an item you paid for online or on the phone, you can return it, even if you’ve opened it. To receive a refund, you must:

  • Let us know you plan to return the item within 14 days of delivery/collection
  • Physically return it within a further 14 days.
The item must be returned in ‘as new condition’ – not used or installed, and in its original packaging. More on returns and refunds.

Order online and collect in store

Sometimes you’ll want something even quicker than we can deliver. Or you can’t be in when our van or courier would arrive. That’s why we offer you the option to order online and collect in store.
Subject to what you’re ordering and where you want to collect from, you can:

Reserve & Collect – reserve online for free and collect at a local store as soon as you like. Once reserved, your item’s held till closing time the next day, to be paid for when you collect.

Pay & Collect – pay online, and have the item sent, for free, from our warehouse to a local store for you to collect. Starting on the date the item arrives in store – which you choose in checkout – you have 28 days to collect it.

Your fastest way to order online for collection is to use our ‘Availability Checker’ feature:

  1. Enter a town or postcode in the box on the product page for an item you’ve selected
  2. Click on the magnifying glass
  3. Review the collection options local to you – just click on any one to add it to your basket

Creation - your plan Flexible credit you control

To spread the cost, pay by Your Plan, our uniquely flexible credit option. Available on all orders £99 and over, this lets you:

  • Spread the cost with monthly payments, 24.9% APR representative
  • Choose the payment term that suits you
  • No deposit to pay and choose to pay it off early at no extra cost
  • Plus once you've opened an account, you can use it to spend again in the future on anything £99 and over
Learn more

How to apply
If you’re buying this item online, you can apply for credit at checkout. Or if you’re reserving online, or shopping in store, apply here.

DSG Retail Limited acts as a credit broker and not a lender. Credit is provided by Creation Consumer Finance Ltd.
Both DSG Retail Ltd and Creation Consumer Finance Ltd are authorised and regulated by the Financial Conduct Authority.

MSI B450-A PRO AM4 Motherboard