10Gb/sec in ITX w GPU


Maker of Awesome | User 1615
Silver Supporter
Mar 6, 2017
Yeah that all got uncivil quickly. Now though it seems like either bifurcation or M.2 to 4x PCIE is the way to go to get this working alongside a discrete GPU.
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Shrink Ray Wielder
Jan 20, 2018
I think the easiest way to get 10 GbE on ITX in a case, is with a little modding and doing a m.2 x4 PCIE to regular X4 PCIE and adding a PCI-E 10 GbE card using the rear m.2 slots on motherboards to keep aesthetic clean.
For now, I think you're right. This ought to work well with recent dual m.2 Intel boards, at the very least. Does anyone know how a 10GbE (or at least 5GbE) NIC performs when connected through an X470/B450 chipset? Not that any AM4 ITX boards currently have dual m.2 anyhow, but it would be an option if they existed. Also, are there any m.2-to-PCIe risers that don't have the slot directly attached to the PCB, but run a flex cable of some sort from the m.2 to a secondary PCB for the slot? That would sure be far more convenient than needing to fit the rather tall slot+a riser cable between the motherboard and the tray.

Mod Edit: Post edited to comply with community standards.
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John Morrison. Founder and Head writer SFF.N
SFF Workshop
SFFn Staff
Jun 19, 2015
Right, posts edited to comply with community standards, thread reopened.
I remind our community members to be civil in discussions, we're all a friendly SFF family here. Remember that over the top swearing, egging on another user, or outright snarkiness is not acceptable here - much like it wouldn't be in public.


Master of Cramming
Silver Supporter
May 18, 2016
The easiest way, by far is to get a Thunderbolt 3 capable board, the ASRock Z270 and Z370 Gaming-ITX/ac comes to mind -- and while last November I suggested an enclosure + PCIe card now I can suggest the 180 USD Sonnet Solo. Mischief managed. No hacks, no risers, no problems. At 0.2L perhaps it's small enough for our esteemed forum even.

Eventually someone will take that IC, mount itt on an m.2 card and run some sort of cable from it. The Aquantia AQC-107S is just 12 mm x 14 mm so it should fit.

https://g2digital.co.uk/wp-content/uploads/2016/06/INNOPIC.png dual GbE already exists in this format.
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SFF Lingo Aficionado
Jul 14, 2017
Neat thread, good info. I added a 10GbE card to my media box using an Era Adapter M.2 to PCIe x4 extender. I got the "R42SR" version. It mounts to the bottom M.2 of an Asus B350-I motherboard and works just fine.

That is nice and clean. Do you have a thread on that? Would be a good footprint for a hypervisor stack i want to make.


-- Dave
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