Monday, July 13th 2026

GIGABYTE Intros the Micro-ATX B850M AORUS Stealth Motherboard

GIGABYTE today introduced the B850M AORUS Stealth, a Socket AM5 motherboard based on the AMD B850 chipset that offers backside connectors for better cable management and aesthetics. This is among the first of the company's motherboards in the microATX form-factor to feature backside connectivity. The board draws power from a combination of 24-pin ATX and a single 8-pin EPS connector. It uses an 8+2+2 phase CPU VRM design. The socket is wired to four DDR5 DIMM slots, the board's sole PCI-Express 5.0 x16 slot, and two M.2 NVMe slots, one of which is Gen 5 x4, and the other interestingly is Gen 4 x4 even though it comes from the CPU. There is a third M.2 Gen 4 x4 slot that's wired to the B850 chipset. Other storage connectivity includes two SATA 6 Gbps ports.

USB connectivity of the GIGABYTE B850M AORUS Stealth includes four 5 Gbps USB 3.2 Gen 1 type-A on the rear panel; four USB 2.0 type-A, also on the rear panel; two 10 Gbps USB 3.2 Gen 2, one of which is type-A and the other type-C, on the rear panel; two 5 Gbps USB 3.2 Gen 2 ports from a header; and a 20 Gbps USB 3.2 Gen 2x2 port from header. Network connectivity includes a Wi-Fi 7 160 MHz and Bluetooth 5.4 provided by a Realtek RTL8922AE WLAN module; and a 5 Gbps wired Ethernet interface driven by a Realtek RTL8126 series PHY. The onboard audio solution is driven by a Realtek ALC1220 HDA codec. The company didn't reveal pricing.
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12 Comments on GIGABYTE Intros the Micro-ATX B850M AORUS Stealth Motherboard

#1
_roman_
Nice to see clearcmos on the io panel as a button
Posted on Reply
#2
TheLostSwede
News Editor
Now can we get an X870 version with USB4 and 10 Gbps Ethernet?
That would make me consider going mATX.
Posted on Reply
#3
RH92
btarunrThe company didn't reveal pricing.
The most important info was left out as per usual :roll: but jokes aside seems like a decent mATX .
Posted on Reply
#4
Broken Processor
Only one Type-C and B850 probably extremely over priced. Why is it impossible to get X870 with a decent spec like 10gb Eth and more than one Type-C in this form factor.
Posted on Reply
#5
KrazyT
A white version is also available :

The full ATX version is around 300 €, so can we expect 280 € for the m-ATX ?
Posted on Reply
#8
RootinTootinPootin
I think this is 5000th motherboard for AMD on this season..too many iterations already..I'm on Intel and I only 1 set for each of my chips and had never complained on a single feature for those boards, whereas on AMD side, the PCIE distribution has always been nuts and I can just use a maximum of 3 NVME's to keep my GPU at x16 Gen 5 and my rear usb ports intact..wew..
Posted on Reply
#9
HBSound

I just never understand why motherboard manufacturers will now allow this M-ATX board to handle dual 5.0 X 8.


Full-Length PCIe Slots

  • 1 x PCIe 5.0 x16 with PCIe UD Slot X
  • 1 x PCIe 4.0 x4
Posted on Reply
#11
PixelTech
D*** it! I was looking for a mobo with back connectors and not white. Now I'm stuck with white parts that don't use the same white. :p
Downside with this one is no mobo codes display.

As my build is a non-work build, M-ATX is enticing, but is vertical space savings worth it? Guess the $20 savings is $20. And less connectivity/chips/etc for less to go wrong with. And wish better connectivity for what's left.
I don't understand why M-ATX and ITX boards aren't more popular with pure gaming builds. Especially when slowly m.2 drives were getting cheaper and larger capacity and faster data transfer speeds. And maybe it would be good for one spinning rust drive, but better yet, just get a external one.
Posted on Reply
#12
Cheeseball
Not a Potato
TheLostSwedeNow can we get an X870 version with USB4 and 10 Gbps Ethernet?
That would make me consider going mATX.
The lack of X870 in microATX form factor is annoying.
Posted on Reply
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Nov 13th, 2026 07:17 PST change timezone

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