Multi-NVMe (m.2, u.2) adapters that do not require bifurcation

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ca3y6

Active Member
Apr 3, 2021
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No I am talking about U.2 HGST SSDs connected with cables, they do not get powered by the card, they get powered by a sata/molex connector. Also tried through an intel backplane (connected to the caecent card) which gets powered by an ATX connector (picture below). So I don't think the problem is power. And also those HGST drives work fine on the same system using PCIe bifurcation.

But yes, cooling is a challenge. I resolved it with having big noctua fans blowing directly into the drives, keeps them under 45 deg celcius even with the fan at low speed.

4192AA16-94E9-4457-AAC0-9B1D72D2D916.jpeg
 
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axemar

New Member
Feb 8, 2025
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Hi,

I have a Dell R340 that does not support PCI bifurcation. It has a riser putted on the PCI x16 (works on x8) and gives x16 (x8) and x8 (x4).
Unraid is installed on it and I want to add 2x SSD cache with a PCI slot to get arround 2 to 3gb/s on the x16 (x8) riser slot.
I want to add a PCI SFP+ 10gb/s on the x8 riser slot (x4).

Is this card could work ? without bifurcation : https://www.aliexpress.us/item/3256805299547807.html

Thanks