Best Mini PC for Home Assistant (2026)

By LK Wood IV · Published 2026-07-20 · Updated 2026-09-28 · ~11 min read · St. Louis County, MO

The mini PC I would buy for Home Assistant is the Beelink Mini S12 Pro: an Intel N100 with 16GB and a 512GB SSD, $339 on Newegg on September 26, 2026, with Home Assistant OS installed straight on it.

If Home Assistant will share the box with Pi-hole or other services in separate VMs, buy a refurbished HP EliteDesk 800 G4 Mini ($179.99 the same day, six cores, 16GB, 256GB) and run HAOS as a VM in Proxmox. For Home Assistant with Frigate, I would keep HAOS on the metal and run Frigate as an app.

The install table below matches each box to the method.

What Home Assistant needs

Very little. The Raspberry Pi install page asks for a Pi “with at least 2 GB of RAM” and a card that “provides at least 32 GB.”

Home Assistant Green, the box the project sells with Home Assistant OS preinstalled (its installation page: it “comes with Home Assistant Operating System already installed”), has a Rockchip RK3566 with a quad-core Arm Cortex-A55 at 1.8 GHz, 4GB of LPDDR4X and 32GB of eMMC, and Home Assistant listed it at $199 on September 26, 2026.

Its virtual-machine instructions set the minimum at “Memory: 2 GB of RAM” and “Processors: 2 vCPUs”.

What an x86 box has to get right is the boot, per the generic x86-64 guide:

• It must be 64-bit and boot with UEFI, with Secure Boot disabled.
• The boot drive must support 512-byte logical sectors. “Home Assistant OS cannot boot from” an NVMe SSD or hard drive that only supports native 4K sectors.
• The guide names an internal SATA SSD, M.2 SSD or eMMC as the typical boot medium. An external USB SSD works “though this is not recommended.”

A drive that came with the box is not guaranteed to pass the sector rule. Check before writing HAOS: lsblk -o NAME,LOG-SEC in the Ubuntu live session prints the logical sector size, and it must read 512.

I would buy 16GB and a 256–512GB SSD for apps and VM headroom. Size Frigate recording storage separately. Capacity depends on camera count, bitrate and retention.

Why a mini PC beats a Raspberry Pi

Recording state history creates database writes, and SD cards can wear out under that load. The forum thread on SD card reliability (October 2, 2020) opens with three cards “dead/corrupted in a few months,” the last an industrial-grade card; another poster lost two in a year and moved to a USB SSD.

A mini PC boots from an internal SSD that handles that write load, and a refurbished EliteDesk at $179.99 on Newegg on September 26, 2026 arrives with the SSD, the case and the power adapter included.

A Pi can also use a USB SSD. That upgrade keeps the existing computer.

The N100 and N150

Per Intel’s spec pages for the N100 and the N150, both have four cores and four threads, a 6W rating, a 16GB single-channel memory ceiling and a 24-execution-unit GPU with Quick Sync Video.

The N150 turbos to 3.6 GHz against the N100’s 3.40 GHz and clocks its GPU at 1 GHz against 750 MHz. For Home Assistant itself, I would choose either.

So the choice comes down to the box. On September 26 the Mini S12 Pro (N100) was $339 and the Mini S13 (N150) $349, both from Beelink’s Newegg store with 16GB and 512GB. The S13’s listing names dual 2.5GbE.

Frigate gives two reasons for its N100 EQ13 pick: the efficient CPU and dual NICs, which let you put cameras on a separate network. Pay the $10 if cameras are coming.

Which N150 mini PC, by job compares eight N150 boxes against Intel’s specification.

When to size up: Frigate and voice

With Home Assistant and its usual apps alone, an N100 has headroom to spare. Two workloads change that.

Frigate NVR. Frigate’s decoding page says “It is highly recommended to use an integrated or discrete GPU for hardware acceleration video decoding in Frigate” (hardware acceleration). The N100’s Quick Sync does the decoding, and the same iGPU runs detection through the OpenVINO detector.

Frigate’s hardware page supports it on “6th Gen Intel Platforms and newer that have an iGPU”. That covers the EliteDesk’s i5-8500T as well.

Frigate’s recommended hardware table names the Beelink EQ13, an N100 box, as able to “run object detection on several 1080p cameras with low-medium activity,” and says the Beelink EQ14 “has some known compatibility issues, so you should avoid that model for now.”

It also says “The Coral is no longer recommended for new Frigate installations, except in deployments with particularly low power requirements or hardware incapable of utilizing alternative AI accelerators for object detection,” and “The Coral does not help with decoding video streams.” On these boxes, skip the Coral.

For many cameras at high activity, the same table steps up to an Intel Core Ultra 125H class machine, one that “Can handle a significant number of 1080p cameras with high activity.”

The ASUS NUC 14 Pro+ uses that chip family; the homelab mini PC guide prices its Core Ultra 7 155H barebone at $1,105.72 once filled with 32GB and 1TB, on Newegg on September 23.

If cameras are the main job, best hardware for Frigate NVR sizes a dedicated box by camera count, and the Frigate NVR storage calculator turns camera count, resolution and retention days into a drive size.

Local voice. Home Assistant’s local voice page says Whisper takes “around 8 seconds” to process a command on a Raspberry Pi 4 and is “done in under a second” on an Intel NUC.

It calls Whisper a good option only when you have powerful hardware and plan to extend voice beyond simple home control, such as with an LLM-based agent.

Its Voice chapter 10 post says French may work with “the largest Whisper model (which requires a GPU), but is unusable on a Raspberry Pi or even an N100-class PC,” while Home Assistant’s Speech-to-Phrase “runs well on a Raspberry Pi 4 or Home Assistant Green.” An N100 handles fixed home-control commands.

A language that needs the largest Whisper model needs a GPU machine. If “voice” means an LLM that understands free-form requests, the local LLM voice guide measures that pipeline per model and pairs a small Home Assistant box with a model server on a machine that already has the compute.

Start on an N100 or a refurbished i5, run your cameras and apps for a week, and upgrade when the CPU graph says so.

Which install goes on which box

Home Assistant’s installation page lists two installation types, Home Assistant OS and Home Assistant Container, and says “Home Assistant Operating System is the recommended installation type for most users.” Supervised and Core installation methods are no longer supported.

The project’s May 22, 2025 post set their end of support at “release 2025.12”. What used to be called add-ons are now “apps” in the docs.

Idle figures come from the named reviewers’ machines: the EQ12 and CWWK are comparison boxes with the same chips as the Beelinks, and the EliteDesk figure is ServeTheHome’s measurement of that model with the same i5-8500T.

Install requirements are from Home Assistant’s installation, generic x86-64, virtual machine and Linux pages, docs version 2026.9.3.

HAOS on the metal is my pick for a single-purpose box. HAOS “has no integrated installer”: the guide’s first method boots Ubuntu from a USB stick of at least 8 GB and writes the HAOS image to the internal drive with the Disks utility, which erases the Windows install the box shipped with.

HAOS in a Proxmox VM is the pick when Home Assistant shares the box. Home Assistant publishes a KVM/Proxmox qcow2 image but no Proxmox walkthrough; the Home Assistant on Proxmox guide covers the q35 and OVMF settings, the disk import and USB passthrough for the radio.

Frigate’s installation page says it “runs best with Docker installed on bare metal Debian-based distributions,” wants “low overhead access to underlying hardware for the Coral and GPU devices” and does not recommend a VM, though it notes that some users have succeeded with Proxmox.

I would still put Frigate on another machine on this route. If cameras are part of the plan, that is the case for an N100 or N150 box with HAOS on the metal and Frigate as an app.

The EliteDesk’s two M.2 slots leave room for a mirrored pair of VM drives, and its 1GbE port is an Intel I219-LM (HP QuickSpecs), which the homelab mini PC guide covers for the e1000e hang under Proxmox.

Home Assistant Container fits a machine that already runs Docker and will keep doing so. Home Assistant’s Linux page runs it with --privileged and --network=host. You update it yourself. Thread and Z-Wave, which run as apps on HAOS, get “no out-of-the-box support” on Container, so each becomes another container you run and update.

Where to buy

I may earn a commission if you buy through these affiliate links. As an Amazon Associate I earn from qualifying purchases.

• Beelink Mini S12 Pro (N100, 16GB, 512GB), $339 on Newegg, September 26, 2026 Check AmazonLink checked 2026-09-26 Check NeweggLink checked 2026-09-26
• Beelink Mini S13 (N150, 16GB, 512GB), $349 on Newegg, September 26, 2026 Check AmazonLink checked 2026-09-26 Check NeweggLink checked 2026-09-26
• HP EliteDesk 800 G4 Mini (i5-8500T, 16GB, 256GB, refurbished), $179.99 on Newegg, September 26, 2026 Check AmazonLink checked 2026-09-26 Check NeweggLink checked 2026-09-26
• Dell OptiPlex 7060 Micro (i5-8500T, 16GB, 256GB, refurbished), $219.99 on Newegg, September 26, 2026 Check AmazonLink checked 2026-09-26 Check NeweggLink checked 2026-09-26

All four ship with RAM and an SSD inside. Buy them that way. In the homelab guide’s barebone math, a 32GB DDR5-5600 SO-DIMM kit was $459.99 on Newegg on September 23, more than the whole Mini S12 Pro.

The EliteDesk costs $40 less than the OptiPlex and has two internal M.2 SSD storage slots in HP’s QuickSpecs. Dell’s OptiPlex 7060 Micro guide lists one M.2 storage slot; its second M.2 connector is keyed for Wi-Fi.

That makes the EliteDesk the refurbished box I would buy.

ServeTheHome’s OptiPlex 7060 Micro with a 65W i5-8500, not the i5-8500T configuration sold above, idled at just over 18W. It draws 7–8W more than the N150 box it tested, a CWWK N150 at 10–11W.

At the US residential average of $0.184/kWh (EIA’s May 2026 figure, the rate the site’s idle-power page uses) that is $11–$13 a year. The same reviewer’s CWWK N150 (10–11W) and EliteDesk 800 G4 Mini i5-8500T (11–12W) sit about 1W apart.

Run your own rate through the homelab power-cost calculator; the 24/7 idle-power breakdown has the full math.

The Zigbee and Thread USB gotcha

A USB 3 port or nearby electronics can interfere with a Zigbee or Thread stick’s 2.4GHz radio. Move the stick away on an extension cable.

The ZHA integration docs say “Make sure to only connect the Zigbee USB adapter to a USB 2.0 port (and not to a USB 3.x port),” and to keep it away from interference, “preferably by using an adequately long shielded USB extension cable connected to a USB 2.0 port.”

Home Assistant built its Connect ZBT-2 around the same problem: “USB ports and nearby electronics can create interference,” and it “includes a 1.5 m (4.9 ft) USB cable.” Which radio to hang on that cable, ZBT-2, Sonoff or SLZB-06, is decided here.

Related reading

• Home Assistant on Proxmox: install HAOS as a VM: the install guide for the EliteDesk or OptiPlex route.
• Best mini PC for a homelab 2026: the bigger virtualization hosts, and the used 1-litre machines slot by slot.
• Which N150 mini PC, by job: eight N150 boxes against Intel’s specification.
• 24/7 homelab idle power costs: what an always-on mini PC costs to run.
• Best NAS for Plex and Jellyfin 2026: where camera recordings and media should live.

Sources

Install requirements (Home Assistant docs 2026.9.3, read September 26, 2026):

• Installation types, generic x86-64, virtual machine, Linux and Container and Raspberry Pi
• Deprecating Core and Supervised installation methods (May 22, 2025)
• Home Assistant Green specifications
• ZHA (Zigbee USB adapter guidance), Connect ZBT-2
• Local voice (Whisper, Speech-to-Phrase), Voice chapter 10

Hardware and measurements:

• Intel spec pages for the N100 and N150
• CNX Software, Beelink EQ12 (N100) power consumption (May 16, 2023)
• ServeTheHome: HP EliteDesk 800 G4 Mini test unit and NIC and power (October 18, 2020), Dell OptiPlex 7060 Micro (January 30, 2021), CWWK Intel N150
• HP QuickSpecs, EliteDesk 800 G4 (version 36) and Dell’s OptiPlex 7060 Micro setup and specifications guide (Rev. A01)
• Frigate: installation, recommended hardware, hardware-accelerated decoding, OpenVINO detector

Prices are each Newegg listing’s buy box on September 26, 2026, 14:50 CDT.