Fanless Intel N100 Firewall and Virtualization Appliance Review

28

Fanless Intel N100 Internal Hardware Overview

Inside the unit, we have a fairly standard layout. On the top we have M.2 slots. On the bottom, we have the SODIMM.

AliExpress N100 4x 2.5GbE Internal Barebones
AliExpress N100 4x 2.5GbE Internal Barebones

One thing we did not get with this unit was a cable for a 2.5″ SATA drive that we used to get with these units. Instead, we got this. We are going to call this the M.2 H-bracket. The purpose is to take the M.2 slot, normally used for WiFi, and add a second M.2 SSD slot internally. If you really wanted to you could install two 4TB M.2 SSDs into this system and make it a NAS, but it is probably not what we would recommend.

AliExpress N100 4x 2.5GbE Internal H M.2 Board
AliExpress N100 4x 2.5GbE Internal H M.2 Board

Something strange with the H-bracket is that the M.2 SSD slot side is not screwed into the motherboard. The PCB can flex and the adapter can make contact with the motherboard. We showed this in the video, you can hear it happen. Just as a quick warning on SSD performance, Intel Alder Lake-N only has 9x PCIe lanes. In this platform four of the nine are needed for the NICs, so there are not enough lanes for these to be full x4 slots like we would normally see on a desktop motherboard.

Our unit came with the Fanxiang 512GB NVMe SSD. You can actually buy these SSDs on AliExpress and we saw them on Amazon as well. In these machines, we tend to use low-cost and low-power DRAM-less SSDs when we configure our own since we like to minimize heat and power.

AliExpress N100 4x 2.5GbE Fanxiang NVMe SSD
AliExpress N100 4x 2.5GbE Fanxiang NVMe SSD

On the memory side, we have perhaps the biggest change. Instead of two DDR4 SODIMMs, we get a single DDR5 SODIMM slot. Alder Lake-N is a single memory channel design but it is DDR5 capable so we get a 50% performance boost from that. In our system was another surprise. We received a Crucial labeled 16GB DDR5 SODIMM. The Crucial-Micron DIMM is perhaps the biggest brand name that we have seen from these AliExpress boxes.

AliExpress N100 4x 2.5GbE Crucial 16GB
AliExpress N100 4x 2.5GbE Crucial 16GB

Here is a look at the system configured.

AliExpress N100 4x 2.5GbE Internal Configured
AliExpress N100 4x 2.5GbE Internal Configured

Here is a look at the copper block from the Intel N100 to the chassis. This unit was very good on temperatures, never hitting even 50C.

AliExpress N100 4x 2.5GbE USB Side Open
AliExpress N100 4x 2.5GbE USB Side Open

On the other side, we can see this is one of the newer designs with a cooling block between the Intel i226-V NICs and the chassis.

AliExpress N100 4x 2.5GbE Ports Open
AliExpress N100 4x 2.5GbE Ports Open

All of this leads us to the performance of the system because that is the big story.

28 COMMENTS

  1. What about the i3-N305 version of this unit – it seems like 2x cores @ 3.8Ghz is way better, no?

  2. The AliExpress link worked for me since I ordered one this morning. I’ve gotta say I was perplexed by it for just a moment when it was only $206. Then I saw that was for the N95 by default so I had to do N100. That’s $216 but it’s an easy selector tool

    Now i’m waiting for it to ship

  3. For anyone interested, there is a lot of useful info in the Nxx thread on the STH forum.

    You can wring a little more performance out of the N100 with some BIOS tuning where it can slightly surpass the N200.

  4. Idle power is one area they can do an awful lot here. I’ve a selection of i5 and i7 laptops that can idle below 2w with screen off (only one Intel NIC, but less than 1-2w for 3 more). My aging Qotom i5-7200u unit with six 1 gig NICs idles below 5w.

    I’d expect these with 4x i226 to be around that 5w figure. I know some in the Nxxx thread users are under 10w with tweaks, but still.

  5. @PCK
    Where did you see coils in the supplied pictures?
    If there are any coils they are nicely hidden.

  6. Such a nice one!
    We plan to design our own models with N305, let’s expect the review!

  7. I’d love one of these awesome fanless devices to come with 10gbe some day. Even just two ports

  8. come on guys, the “G” on the front is labeled in one of the pictures: “GPIO”. so prolly a LED that can be controlled.

  9. Obi-Wan – we are usually not running windows, and these are not Z790 chipset motherboards. It is a different PCIe layout.

    Just for some sense, we literally have over 100 ports running 24×7 linked to 2.5GbE switches for the switch testing.

  10. I purchased one of these to use as a Pfsense firewall. Unfortunately it would crash nearly every time I tried to install a package, restore from a backup or upgrade to Pfsense Plus. For me this was a big disappointment because it is essentially useless for me.

  11. @Steven – I’m having the same issue with mine, it seems to be quite crash-prone, but I’m not sure if it’s a memory issue, NVMe, CPU, or what… very strange behavior and it happens at different times (e.g. after live booting off USB, while installing an OS, etc.).

    It doesn’t seem to be a thermal issue, either.

  12. Anyone find a source for the 80mm fan with JST connector for these units. While it doesn’t absolutely need the fan, for my case, bit of noise isn’t an issue and cooler is always better. :)

  13. Hello, were you able to enable IOMMU PCI passthrough to VMs on PROXMOX? What I am seeing is that all related settings in the BIOS are enabled but PROXMOX reports that IOMMU is not enabled.

  14. Any hint on where VT-d is enabled on this BIOS?

    I can’t get Proxmox 8 to recognize IOMMU: No IOMMU detected, please activate it.See Documentation for further information.

    Changed (/etc/default/grub): GRUB_CMDLINE_LINUX_DEFAULT=”quiet iommu=pt intel_iommu=on”
    update-grub

  15. How is the thermal performance of these units? the N5105 units are notorious for running hot, hopefully these are better/better thermal paste?

  16. Had some issues with this running Proxmox where it would hang after running for a couple of hours. These issues disappeared when I disable cstates entirely in the BIOS

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