MSI B450-A Pro

MSI’s Pro series of motherboards are designed with professionals in mind, without sacrificing in performance, quality and offers a blend of modest and classic aesthetics. MSI has announced three Pro series boards for the AMD B450 chipset launch, the ATX sized B450-A Pro and a pair of microATX options, the B450M Pro-M2 and B450M Pro-VDH.

Starting with the MSI B450-A Pro motherboard, the design is pretty simplistic with plenty of PCIe connectivity available. MSI markets this particular model as being optimized and suitable for cryptocurrency mining and has a full-length PCIe 3.0 x16 slot, a full-length PCIe 2.0 x4 slot and a total of four PCIe 2.0 x1 slots. Up to DDR4-3466 memory is supported with a supported maximum of up to 64 GB can be installed across the four RAM slots. Both the use of non-ECC and ECC memory is permitted, although installed ECC memory will operate in non-ECC mode.

The B450-A Pro has a total of six SATA 6 Gbps which support RAID 0, 1 and 10 arrays. A single M.2 slot is present with support for drives up to M.2 22110 (22 x 110 mm) and has support for both PCIe 3.0 x4 and SATA capable devices; using this slot disables two SATA ports.

Stylistically, the B450-A Pro has a black PCB with dark grey metallic heatsinks across the power delivery and chipset. The board looks to be running a 6-phase power delivery running in a 4+2 configuration. A single 8-pin ATX 12 V CPU input and 24-pin ATX motherboard input are there to provide power to the board.

On the rear panel the B450-A Pro has two USB 3.1 10 Gbps Type-A ports, two USB 3.1 5 Gbps Type-A ports and two USB 2.0 ports. Also featured is a BIOS Flashback+ button, with a PS/2 keyboard and mouse port. Natively supporting the Ryzen APUs, the board makes use of a single HDMI 1.4 port, a DisplayPort and a legacy VGA port. The RJ45 LAN port is powered by a Realtek 8111H Gigabit controller and the six 3.5mm audio jacks take orders from the Realtek ALC892 audio codec.

With MSI focusing on a mixture of subtle aesthetics, good quality componentry and with cryptocurrency mining support, there isn’t a lot of bells and whistles when compared to the Gaming Series models, but what is on offer is more than enough for professional users. The MSI B450-A Pro is expected retail for $89.99 which makes this one of the most cost-effective full-sized ATX models without Gaming branding and fancy gaming themed software factored in.

MSI B450M Mortar and B450M Mortar Titanium MSI B450M PRO-M2 and B450M PRO-VDH


View All Comments

  • T1beriu - Tuesday, July 31, 2018 - link

    Gavin, you made a table that shows B350 and A320 don't support PB2 and XFR2. This is incorrect. Raven Ridge (2400G, 2200G, 2X00U) work without a problem on these boards. Yes, Raven Ridge has PB2 and XFR2 from day one. AMD advertised it when they launched RR last year.
  • Ian Cutress - Tuesday, July 31, 2018 - link

    It's not natively enabled from launch - it requires a BIOS update which not all vendors on all boards have provided. The CPUs work sure, but not all features of the CPUs will work in all products. Reply
  • T1beriu - Tuesday, July 31, 2018 - link

    PB2 and XFR work on A320 as well. Reply
  • MrbigN - Wednesday, January 23, 2019 - link

    If you buy the boards directly from there amazon store or on there website they should be Stock updated.

    As of, Jan,23 2019
  • bull2760 - Tuesday, July 31, 2018 - link

    Please fix your charts. PCIe should be 3.0 not 2.0 Reply
  • Ian Cutress - Tuesday, July 31, 2018 - link

    The Chipset supports PCIe 2.0 lanes. PCIe 3.0 lanes come from the CPU. Reply
  • T1beriu - Tuesday, July 31, 2018 - link

    StoreMI can work on 300-series motherboards but comes with an additional fee (I don't think it's BIOS dependent).
  • Ian Cutress - Tuesday, July 31, 2018 - link

    The systems support 10 GbE, if you buy the cards. Yes it's picking hairs, but we're speaking native support. Reply
  • jtd871 - Tuesday, July 31, 2018 - link

    What does 10GbE have to do with StoreMI?! Reply
  • Ian Cutress - Tuesday, July 31, 2018 - link

    10GbE has nothing to do with StoreMI. I was using it as an example of something that the system supports if you buy it. Like StoreMI. Reply

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