GIGABYTE B550 Aorus Pro & Aorus Pro AC

Moving down the product stack and onto a pair of more affordable, albeit it still impressive models is the B550 Aorus Pro AC and non-Wi-Fi variant. The only difference is the Pro AC version comes an Intel Wi-Fi 5 interface, although both share the same core feature set. The most notable inclusions are two PCIe M.2 slots with one PCIe 4.0 x4 and one PCIe 3.0 x4 slots, with a Realtek 2.5 G Ethernet controller, and three full-length PCIe slots which operate at x16 and x16/x+4/x+2.

Focusing on the board’s aesthetic, the GIGABYTE B550 Aorus Pro AC and B550 Aorus Pro feature an all-black PCB, with black and grey heatsinks. GIGABYTE is advertising a 12+2 power delivery with a single 8-pin 12 V ATX CPU power input which delivers power directly to the processor. For storage there two M.2 slots with the top slot powered by the processor and supports up to PCIe 4.0 x4 M.2 SSDs, while the second slot is controlled by the chipset and as a consequence, supports up to PCIe 3.0 x4 M.2 drives. There are also six SATA ports which support RAID 0, 1, and 10 arrays. One thing we’ve seen from B550 is vendors are QVL’ing even fast memory as the B550 Aorus Pro supports up to DDR4-5200 with a maximum capacity of up to 128 GB across four memory slots.

The B550 Aorus Pro AC and B550 Aorus Pro are using a 12+2 phase power delivery, with twelve Vishay SiC651C 50 A power stages for the CPU, and two SiC651AD 50 A power stages for the SoC. It is using an Intersil ISL229004 in a 6+2 configuration, with six ISL6617A doublers for the CPU section.

On the rear panel of both B550 Aorus Pro models is a single USB 3.2 G2 Type-C, two USB 3.2 G2 Type-A, three USB 3.2 G1 Type-A, and six USB 2.0 ports. Also present is a Q-Flash Plus button and a single Realtek RTL8125BG 2.5 G Ethernet port. On the Pro AC model is two antenna ports for the Intel AC3168 Wi-Fi 5 adapter. Finishing off the rear panel is a single HDMI 2.1 video output for users looking to use Ryzen based APUs, while the 3.5 mm audio jacks and S/PDIF optical output are powered by a Realtek ALC1220-VB HD audio codec.

The GIGABYTE B550 Aorus Pro AC and B550 Aorus Pro represent a more modest price point, with an MSRP of $189 for the Pro AC, and $179 without the Wi-Fi 6 adapter. For the price, both models are still stacked and offer users PCIe 4.0 capability in both the top full-length slot and the top M.2 slot. There is also 2.5 G Ethernet which is something X570 models doesn’t offer at this price point, making B550 an attractive alternative, not to forget the boards large 12+2 advertised power delivery too.

GIGABYTE B550 Aorus Master GIGABYTE B550M Aorus Pro
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  • Operandi - Tuesday, June 16, 2020 - link

    Looks like some nice mATX versions this round, nice!
  • YB1064 - Thursday, June 18, 2020 - link

    I was hoping to see a $75-$90 board.
  • kenjiwing - Tuesday, June 16, 2020 - link

    Fortunately, this component is a unique motherboard among B550 and well worth reading up on [add link].
    Needs to be edited.
  • anirudhs - Tuesday, June 16, 2020 - link

    There's a noise sensor which can adjust fan speed for maximum quietness with good thermals. Saw it on the KitGuruTech video. The noise sensor isn't there to spy on you though.
  • PeterCollier - Wednesday, June 17, 2020 - link

    The quality of the editing here is shit tier. Seriously, just run the articles through Grammarly before publication. It's free and it spots plenty of errors.
  • Heavenly71 - Tuesday, June 16, 2020 - link

    Sadly none of the mITX boards have more than 6 external USB ports. My old ASUS mITX has 8! And in really small mITX cases you can't add a bracket with more USB, because the two brackets are already used by the gfx card. Guess I have to wait for an enthusiast mITX board )-:
  • damianrobertjones - Tuesday, June 16, 2020 - link

    Or, just maybe, get a usb dongle with 4 ports?
  • Mr Perfect - Tuesday, June 16, 2020 - link

    That is disappointing. The number of USB devices people need to plug in can't be dropping, surely? I know I've got more now then even a year ago.
  • rrinker - Tuesday, June 16, 2020 - link

    Are they really going up? I have 2 USB devices plugged in to my system - a keyboard and a mouse. I occasionally plug a USB stick in one of the front ports to transfer files. My phone and tablet sync over wifi, they don't get plugged in. I have a charger behind my desk and a cable to charge them. My printer is on the network.
    The one place I DO need lots of USB ports is also the place where I have a small cube case machine, with no discreete GPU, because it doesn;t need one. On that one I added a USB PCI card to get enough ports. In addition to the keyboard and mouse, that machine is on my workbench where it connects to several electronic test instruments and I have multiple cabled for programming microcontrollers. I also have a USB microscope for board inspection. And then I have 3 more USB devices connected for my other hobby that shares the bench. Plus a front port kept free for USB sticks.
    So the use case I have for more USB has the PCI slots open to add expansion cards, the use case where I have a discrete GPU eating up the slot space doesn't need an excess of USB ports.
  • DigitalFreak - Tuesday, June 16, 2020 - link

    I use 3 USB 3.0 ports just for my Oculus Rift

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