Best Cheap Mini PC for Proxmox: 6 Picks Under $300

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A cheap mini PC for Proxmox used to mean either a sketchy used office machine or settling for a Raspberry Pi that choked the moment you added a second VM. That’s not the picture anymore. Intel’s N100/N150 chips and a handful of newer AMD Ryzen budget boxes have pushed credible Proxmox VE hosts down under $300, idling at 6–15W and quietly running a full home lab stack. The catch is that the budget mini PC market is also crowded with rebrands, single-channel-RAM tax, and the occasional “specs say 2.5GbE but the box ships with 1GbE.” We picked six that actually hold up.

Prices accurate at time of writing and subject to change.

Cheap mini PC for Proxmox: quick comparison

Product	Best For	Key Spec	Price Tier	Rating	Buy Link
KAMRUI GK3 Plus	Cheapest entry	Intel N95, 16GB DDR4, 512GB SATA	~$130–150	4.4/5	Check Price on Amazon
Beelink Mini S12 Pro	Best sub-$200 N100	Intel N100, 16GB DDR4, 500GB NVMe	~$170–189	4.5/5	Check Price on Amazon
GMKtec NucBox G3 Plus	Cheapest 2.5GbE box	Intel N150, 16GB DDR4, 512GB NVMe	~$159–199	4.4/5	Check Price on Amazon
Beelink Mini S13	Most compact 2.5GbE	Intel N150, 12GB LPDDR5, 512GB SATA	~$199–219	4.3/5	Check Price on Amazon
Beelink EQ14	Dual-LAN for routing	Intel N150, 16GB DDR4, 500GB SSD, dual LAN	~$189–239	4.4/5	Check Price on Amazon
GMKtec NucBox M6	AMD stretch pick	Ryzen 5 6600H, 16GB DDR5, dual 2.5GbE	~$269–299	4.3/5	Check Price on Amazon

1. KAMRUI GK3 Plus — The cheapest cheap mini PC for Proxmox

If you just want the lowest-friction way to get Proxmox running 24/7 for under $150, this is it.

Why it makes the list: The GK3 Plus runs Intel’s Alder Lake N95 — a 4-core / 4-thread chip that boosts to 3.4 GHz at a 15W TDP — with 16GB of DDR4 already in the box. That’s enough to comfortably host a Pi-hole LXC, a Home Assistant VM, and one or two small Linux containers without breaking a sweat. TechPowerUp specifically called out this tier as a viable choice “if idle draw, size, and quiet matter most,” and KAMRUI itself lists Linux, Wake-on-LAN, RTC Wake, and Auto Power On in the spec sheet — the basics you need to use it as a server. At a street price around $150 (sometimes $125 from KAMRUI direct), it undercuts every N100/N150 competitor on this list.

Key specs:

• Intel Alder Lake N95, 4C/4T, up to 3.4 GHz, 15W TDP
• 16GB DDR4-2666 (single SODIMM, single-channel)
• 512GB M.2 2280 SATA SSD + 2.5″ SATA bay for +2TB expansion
• Gigabit Ethernet, Wi-Fi 5, Bluetooth 4.2
• 2x HDMI 2.0 (4K@60Hz), 1x VGA, 2x USB 3.0, 2x USB 2.0

Watch out for: Two real corners get cut to hit this price. First, the M.2 drive is SATA, not NVMe, so cold boot and snapshot operations feel sluggish next to the Beelinks below. Second, KAMRUI is part of the same Shenzhen group as AceMagic, which TechPowerUp reminds readers shipped compromised Windows images in early 2024 — the GK3 Plus wasn’t implicated, but it costs nothing to wipe the preinstalled Windows and install Proxmox fresh on first boot. Networking is plain 1GbE only, so don’t pair this with a 2.5G NAS expecting to see those speeds.

2. Beelink Mini S12 Pro — The reliable sub-$200 N100 default

The mini PC that quietly became the default Home Assistant and small-Proxmox box for thousands of homelabbers.

Why it makes the list: The Mini S12 Pro pairs Intel’s N100 with 16GB of DDR4-3200 and a real 500GB NVMe SSD — not SATA — for under $200. Notebookcheck’s review measured a 20W sustained / 25W short-burst power profile and confirmed Wi-Fi 6 via the Intel AX201 card. More importantly, the windgate.net writeup walks through running Proxmox and Ubuntu Server on this exact unit with powersave tuning, and notes that the AX201 Wi-Fi is supported from kernel 6.4.10 onward. That’s the kind of independent operational confirmation budget mini PCs rarely get. The chassis is tiny (4.52 x 4.01 x 1.54 inches), VESA-mountable, and idle fan noise sits around 26 dB(A) — quiet enough to live in a media console without anyone noticing.

Key specs:

• Intel Alder Lake N100, 4C/4T, up to 3.4 GHz, 20W PL1 / 25W PL2
• 16GB DDR4-3200 (single SODIMM)
• 500GB M.2 2280 NVMe SSD
• 1x Gigabit Ethernet, Wi-Fi 6 (Intel AX201), Bluetooth 5.2
• 4x USB 3.2 Gen 2 (10Gbps), 2x HDMI 2.0 (4K@60Hz)
• Idle ~26 dB(A), load 33–37 dB(A)

Watch out for: Two limits to know about. Single-channel memory hurts the iGPU badly (Notebookcheck measured graphics about 76% slower than typical Iris Xe 96EU laptops) — that’s irrelevant for headless Proxmox but matters if you also want to use this as a Plex transcoding host. And while the integrated I225-V controller can do 2.5GbE, Beelink wired the rear RJ45 at 1G only on this model. If 2.5GbE matters to your network, pick the G3 Plus or S13 below instead. The USB-C port on the rear is also data-only — don’t plan on it driving an external display.

3. GMKtec NucBox G3 Plus — Cheapest 2.5GbE box that runs Proxmox cleanly

Same price tier as the S12 Pro, but with the 2.5GbE NIC the S12 Pro forgot.

Why it makes the list: The G3 Plus moves up to the newer Intel Twin Lake N150 (4C/4T, up to 3.6 GHz boost) and ships with 16GB DDR4-3200 plus a 512GB PCIe 3.0 NVMe SSD — and the rear port is a proper 2.5GbE backed by the Intel i226-V controller. Lon Seidman (lon.tv) called it a small but meaningful upgrade over the original G3, specifically calling out the quieter fan and clean Linux experience. The Inside Review tested the G3 Plus as a Proxmox host alongside TrueNAS Scale, OpenMediaVault, and CasaOS and found the N150 “never faltered” in those homelab roles. At a starting street price around $159, that’s the cheapest path to 2.5GbE on this list.

Key specs:

• Intel Twin Lake N150, 4C/4T, up to 3.6 GHz boost
• 16GB DDR4-3200 SODIMM (expandable to 32GB)
• 512GB PCIe 3.0 NVMe SSD + M.2 2242 SATA slot for up to +2TB
• 2.5GbE (Intel i226-V), Wi-Fi 6, Bluetooth 5.2
• 4x USB 3.2 Gen 2 (10Gbps), 2x HDMI 2.0 (4K@60Hz)
• Power draw: 12–14W idle, 30–32W under load

Watch out for: The headline gotcha is a BIOS-locked power limit. Some users report the N150 capped at about 10W TDP in BIOS, holding sustained clocks around 2.9 GHz rather than the rated 3.6 GHz. Real-world Proxmox use rarely hits this ceiling, but if you were planning to push the iGPU, know that GMKtec hasn’t shipped a BIOS update to unlock it. There’s also a documented Linux reboot quirk where “shutdown -r now” powers off cleanly but boots back to a black HDMI output — manual power cycle works around it, and headless Proxmox installs sidestep the issue entirely.

4. Beelink Mini S13 — Most compact 2.5GbE box

Same chassis size as the S12 Pro, but with 2.5GbE and faster LPDDR5 memory.

Why it makes the list: The Mini S13 is essentially the S12 Pro’s successor — same 4.52 x 4.01 x 1.54-inch chassis, same VESA mount, but powered by the N150 and (on the variant we’re recommending) 12GB of soldered LPDDR5 RAM plus a 2.5GbE port. Liliputing pegged the launch price at $219 and noted that compared to the EQ14, the S13 is smaller but uses an external power brick. The independent minipc-review.com benchmark run measured a Geekbench 6 score around 1242 single-core / 3029 multi-core and confirmed the unit “operates at full performance for extended periods without any temperature or noise issues” — the kind of stability statement you want from a 24/7 Proxmox host.

Key specs:

• Intel Twin Lake N150, 4C/4T, up to 3.6 GHz, 25W max TDP
• 12GB LPDDR5 RAM (soldered, not upgradeable on this variant)
• 512GB M.2 SATA SSD + second M.2 PCIe 3.0 x1 NVMe slot (up to +4TB)
• 2.5GbE RJ45, Wi-Fi 6, Bluetooth 5.2
• 4x USB 3.2 Gen 2 (10Gbps), 2x HDMI 2.0 (4K@60Hz)

Watch out for: Beelink ships at least three Mini S13 SKUs with very different specs — LPDDR5 12GB with 2.5GbE, DDR4 16GB with 1GbE SATA, and DDR4 16GB with 1GbE NVMe. They’re not interchangeable. Read the title of whichever Amazon listing you click into and confirm it matches the 12GB LPDDR5 + 2.5G LAN combo before checkout. Also: 12GB is the hard ceiling on the LPDDR5 variant because the memory is soldered, so this is a 2–3-VM box, not a heavy multi-tenant host. As with the EQ14 below, there have been some forum reports questioning Beelink’s preinstalled Windows image — another good argument for wiping it and installing Proxmox directly.

5. Beelink EQ14 — Best dual-LAN budget pick

The pick if you want Proxmox + a soft router (OPNsense, pfSense) on one box.

Why it makes the list: The EQ14 is what you buy when you need two NICs — one for management, one for VM traffic, or one WAN-side and one LAN-side for OPNsense. It runs the N150 at up to 3.6 GHz, ships with 16GB DDR4-3200, and the chassis includes a built-in power supply, which keeps your AV closet a lot cleaner than yet another barrel-jack brick. TweakTown confirmed the layout: dual 1000 Mbps LAN ports (on the base variant), 3x USB 3.2 Gen 2 plus a USB-C 10Gbps data port, and dual HDMI 2.0 outputs. Neowin’s review pegged the Amazon coupon price at $189 at launch, which makes it one of the cheapest dual-LAN x86 boxes on the market.

Key specs:

• Intel Twin Lake N150, 4C/4T, up to 3.6 GHz, 6W base / 25W max TDP
• 16GB DDR4-3200 (single SODIMM)
• 500GB M.2 SSD ships installed; two M.2 PCIe 3.0 slots (x4 + x1)
• Dual LAN — base variant 2x 1GbE; separate 2x 2.5GbE variant from Beelink direct
• Wi-Fi 6 (Intel AX101), Bluetooth 5.2, internal PSU
• Dimensions: 126 x 126 x 39 mm

Watch out for: Read the listing carefully. The default Amazon EQ14 is 2x 1GbE — if you specifically want 2x 2.5GbE, Beelink sells that variant separately and the Amazon listings don’t always make the distinction obvious. The shipped primary SSD is M.2 SATA in the PCIe 3.0 x4 slot, so budget another $50–100 for an NVMe upgrade if you want real disk speed. And per The Inside Review’s writeup, batch-to-batch QC varies — intermittent USB3 issues and occasional Realtek NIC substitutions despite spec sheets claiming Intel have been reported. Confirm your NIC chipset with lspci before you commit to an OPNsense build.

6. GMKtec NucBox M6 — AMD stretch pick if budget can flex

If you can find it at $299 or below, this is the most actually-capable Proxmox host on the list.

Why it makes the list: The NucBox M6 is the only AMD pick under $300 we’re comfortable recommending. The Ryzen 5 6600H is a 6-core / 12-thread Zen 3+ chip that boosts to 4.5 GHz at a 45W TDP, paired with dual-channel DDR5-4800 (real dual-channel, not the single-stick compromise on every N100/N150 above) and dual 2.5GbE NICs. DroiX measured a Cinebench R23 multi-core score around 10,000 — well over double what an N100 manages. For a 4–6-VM Proxmox cluster node where you actually plan to run Windows VMs, Docker stacks, and a Plex server simultaneously, this is the headroom you want.

Key specs:

• AMD Ryzen 5 6600H, 6C/12T, 3.3–4.5 GHz, Zen 3+, 45W TDP
• 16GB DDR5-4800 dual-channel (2x8GB SODIMM, expandable to 64GB)
• 512GB PCIe NVMe SSD, dual M.2 slots for up to 4TB
• Dual 2.5GbE RJ45, Wi-Fi 6E, Bluetooth 5.2
• HDMI 2.0, DisplayPort, USB4 Type-C — triple 4K@60Hz output
• Dual-fan cooling, 128.8 x 127 x 51.8 mm

Watch out for: Price is the catch. The base 16GB/512GB DDR5 variant lives in the $269–329 band, so it only stays under $300 on a coupon or sale day — don’t pay sticker. The dual fans get noticeably louder under sustained load, which makes this a closet-or-basement box rather than a bedroom one. GMKtec’s warranty is also a single year, which is shorter than a refurbished Lenovo Tiny will give you. Worth the trade only if you actually need the cores.

What to look for in a cheap Proxmox mini PC

Cheap mini PCs all start to look the same on a spec sheet. A few things actually matter for Proxmox use:

• RAM channels matter more than RAM speed. Every N100/N150 box on this list is single-channel because the chip itself only supports one DIMM. That’s fine for 2–3 small VMs. Dual-channel matters once you’re running heavier workloads — which is why the M6 is the only pick that handles a real 5–6 VM load.
• 2.5GbE or two NICs. If your NAS is on 2.5GbE, you want a 2.5GbE port on the host. If you’re building a Proxmox + OPNsense combo, you want two physical NICs so you can pass one through to the firewall VM.
• NVMe over SATA. Snapshots and backups feel painfully slow on SATA SSDs. If your budget pick ships with an M.2 SATA drive (the EQ14, S13 LPDDR5 variant, and GK3 Plus all do), plan to swap it.
• Storage expansion. Two M.2 slots is the minimum for a ZFS mirror; bonus points for a 2.5″ SATA bay if you want a cold-storage drive in the same box.
• BIOS access. Aptio-based BIOS implementations let you tweak power limits and enable VT-d / IOMMU. The EQ14’s BIOS is famously open. Cheaper boxes sometimes ship locked-down firmware that can’t enable IOMMU at all.

Power draw is the other big one. The N100/N150 boxes idle at 6–15W, which works out to roughly $6–15 per year in electricity at average US rates. The Ryzen 5 6600H pulls closer to 35–45W idle-to-light-load, so the M6 will cost about three to four times more to run 24/7. Still cheap compared to a full tower, but worth knowing.

Cheap Proxmox mini PC FAQ

Can a mini PC really run Proxmox 24/7?

Yes — comfortably. Every pick here supports Wake-on-LAN, RTC Wake, and Auto Power On in BIOS, which are the basics for unattended server operation. The Beelink S12 Pro in particular has an extensive set of community guides for tuning it as a 24/7 Proxmox host. The bigger question is heat: low-TDP CPUs like the N100/N150 sit in their thermal envelopes happily, while higher-TDP chips like the Ryzen 5 6600H will throttle if you cram them in a sealed cabinet.

How much RAM do I need for Proxmox on a mini PC?

Proxmox itself runs in about 2GB. Everything else goes to VMs and LXC containers. 16GB is the practical floor for any meaningful homelab — that’s two or three 4GB Linux VMs plus a few small LXCs. Skip the 8GB configurations; you’ll regret it within a month.

Is an Intel N100 or N150 powerful enough for Proxmox?

For a single-node lab running Pi-hole, Home Assistant, a small Linux container or two, and maybe a Plex server (without GPU transcoding) — yes, easily. The N150 has roughly 10–15% more headroom than the N100, but in real workloads the difference is negligible. Where the N100/N150 boxes do struggle is single-channel memory bandwidth: heavy database or compile workloads will feel constrained. For that, the Ryzen-based NucBox M6 is the better fit.

Do I need two NICs on a Proxmox mini PC?

Only if you’re running a firewall or router VM (OPNsense, pfSense) and want to dedicate one physical port to it. For a single-node Proxmox host doing media serving, Home Assistant, and a few LXC containers, one NIC is fine. If you’re building a multi-node cluster, dual NICs let you separate Corosync/cluster traffic from VM traffic, which is recommended practice.

Can I cluster three cheap mini PCs together?

Yes, and it’s actually a popular budget HA cluster setup. Three Beelink EQ14 or GMKtec G3 Plus boxes will run a Proxmox cluster well, but you’ll want a dedicated management network — either via the dual NICs on the EQ14 or via a cheap USB-to-Ethernet adapter on the single-NIC boxes. Be realistic about resource overhead: with single-channel 16GB DIMMs across three nodes, you have about 48GB total RAM minus Proxmox overhead, which is plenty for 8–10 small VMs but not enterprise workloads.

What’s the catch with these super-cheap Chinese mini PCs?

Three real ones. First, QC varies batch to batch — some EQ14 units ship with Realtek NICs instead of the Intel chips on the spec sheet, so verify with lspci after install. Second, the preinstalled Windows images on Beelink and KAMRUI (KAMRUI is part of the AceMagic group that shipped compromised Windows in early 2024) are worth wiping for anything you care about. Third, warranties are typically one year and support is email-only — budget the way you would for a Chromebook, not a Lenovo ThinkPad.

Conclusion

Picking the right cheap mini PC for Proxmox comes down to what your home lab actually needs to do, not which spec sheet looks tallest. For most readers, the right pick is the Beelink Mini S12 Pro if you want bulletproof N100 + NVMe at the lowest price, or the GMKtec NucBox G3 Plus if you can find it at the same price with 2.5GbE. The KAMRUI GK3 Plus is the right answer if you literally cannot spend more than $150, and the Beelink EQ14 is the right answer if you specifically want a soft-router-plus-Proxmox combo on one box. Step up to the GMKtec NucBox M6 only if you actually plan to run 5+ VMs simultaneously — otherwise the extra cores and watts are wasted. Whichever you pick, wipe the preinstalled Windows on first boot, install Proxmox cleanly, and check your NIC chipset with lspci before you commit to a firewall build. A $200 box that’s been planned around its real-world limits is more useful than a $500 box you bought on benchmark numbers.

If you’re shopping the rest of your home lab stack too, check back as we publish more home lab guides.