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Very nice find, thanks, I checked it can do 32GB ECC - however, for mass storage it only seems to have 1x NVME, while some quick mental math tells me there should be enough lanes for 2x NVME or Pci-e X4 Gen 3

Do you know something similar to the Udoo that would have at least 2x NVME + 1x SATA 2.5?

From the Udoo specs: > 32gb Emmc 5.0 High Speed Drive > Ssd Sata Module Slot M.2 Socket Key B 2260 (Featured Also Pci-e X2) > Nvme Module Slot M.2 Socket Key M 2280 (Pci-e X4 Gen 3 Interface) > Sata 3.0 6 Gbit/s Standard Connector



There are "commercial" boards, but they price by appointment only and probably cost 3-10x as much.

Here's an IO comparison

Udoo Bolt

* 1 sata 3 port

* 1 m.2 type B (2x PCIe 2 lanes)

* 1 NVME drive (over 4x PCIe 3 lanes)

* 1 eMMC 5 (32gb soldered -- a mistake IMO, but one could potentially solder on a different chip)

Rockchip rk3399 (raw specs)

* 1 eMMC 5.1

* 2 SD/MMC 4.5

* 4x PCIe 2.1 lanes

The Helios64 is stretching all their SATA across those 4x PCIe 2.1 lanes. The single m.2 type B on the udoo has that much bandwidth by itself (and the NVME has the equivalent of 8x additional PCIe 2 lanes). If you really wanted, you could probably find an adapter that could turn the NVME into PCIe and then into quite a few SATA lanes as that's basically all they're doing anyway with the helios.


Thanks a lot! For what I do, I'd need to add a key-B NVME drive (not SATA, because of the IOPS) to the "normal" NVME if I understand correctly.

Do you know any such drive having at least 512G and working in NVME (not SATA)? Or can I just plug a 2260 B+M keyed drive and hope it doesn't default to SATA?


Their docs claim either NVME or SATA work.

https://www.udoo.org/docs-bolt/Hardware_References/M.2_Conne...




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