The Full Build Cost Breakdown: How Much Does a Proper Homelab Actually Cost?
Every component, every shipping fee, every marketplace commission — the complete cost breakdown of the ZeroToLab homelab build. Total: €804 for a Proxmox-ready server with 64 GB RAM and room to grow.
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The component selection is done. Case, CPU, motherboard, RAM, cooler, PSU — each article covered the reasoning behind the choice. Now let’s talk about what actually matters when the reasoning is over: how much did it all cost?
Not just the component prices. The real cost — including shipping, marketplace commissions, and the platform fees that silently inflate every used purchase.
The Bill of Materials
| Component | Type | New/Used | Platform | Price | Shipping | Fees | Total |
|---|---|---|---|---|---|---|---|
| Sagittarius | Case | New | AliExpress | €66.01 | €55.74 | — | €121.75 |
| Intel i5-12400 | CPU | Used | Subito | €100.00 | €6.20 | €5.99 | €112.19 |
| ASUS Prime B760M-A | Motherboard | Used | Subito | €65.00 | €6.99 | €4.45 | €76.44 |
| Corsair Vengeance 64 GB | RAM | New | Amazon | €245.80 | €2.99 | — | €248.79 |
| Transcend 500 GB | SSD | Used | Vinted | €50.00 | €4.19 | €3.20 | €57.39 |
| Thermalright AXP90-X47 Full | Cooler | New | Amazon | €37.00 | — | — | €37.00 |
| Corsair SF750 | PSU | Used | Subito | €105.00 | €6.99 | €6.45 | €118.44 |
| ARCTIC P12 PWM PST | Fans | New | Amazon | €32.00 | — | — | €32.00 |
| Grand Total | €804.00 |
Eight hundred and four euros. That’s the all-in number for a homelab server that can run Proxmox with multiple VMs, handle Plex transcoding, serve as a NAS with hot-swap bays, and has a clear upgrade path for GPU and additional storage.
Breaking It Down
By Category
| Category | Total | % of Build |
|---|---|---|
| RAM | €248.79 | 31% |
| Case | €121.75 | 15% |
| PSU | €118.44 | 15% |
| CPU | €112.19 | 14% |
| Motherboard | €76.44 | 10% |
| SSD | €57.39 | 7% |
| Cooler | €37.00 | 5% |
| Fans | €32.00 | 4% |
RAM is the single most expensive component at nearly a third of the total build cost. That’s the price of starting with 64 GB instead of 32 GB — but as I argued in the RAM article, upgrading later is more expensive and less convenient than doing it right from the start.
The case and PSU together account for 30% of the build — a reminder that in SFF builds, the enclosure and power delivery aren’t afterthoughts. The Sagittarius case with its hot-swap bays and the SF750 Platinum with its efficiency and headroom are investments in the platform’s longevity.
New vs Used
| Condition | Items | Total | % of Build |
|---|---|---|---|
| New | Case, RAM, Cooler, Fans | €439.54 | 55% |
| Used | CPU, Motherboard, SSD, PSU | €364.46 | 45% |
Almost half the build came from the used market. This is where the real savings are. The i5-12400 at €100 (vs ~€150-170 new), the ASUS motherboard at €65 (vs ~€120-140 new), and the SF750 at €105 (vs ~€150-170 new) — buying used saved roughly €150-200 compared to an all-new build.
The components I bought new are the ones where used doesn’t make sense: RAM (matched kits matter for stability), the cooler (€37 new isn’t worth the risk of a used heatsink with degraded thermal paste contact), and the case fans (consumable items, cheap new).
The case is new because… it’s an AliExpress niche product. There’s no used market for the Sagittarius.
By Platform
| Platform | Items | Total | Shipping | Fees | % of Build |
|---|---|---|---|---|---|
| Amazon | RAM, Cooler, Fans | €317.79 | €2.99 | — | 40% |
| Subito | CPU, Motherboard, PSU | €307.07 | €20.18 | €16.89 | 38% |
| AliExpress | Case | €121.75 | €55.74 | — | 15% |
| Vinted | SSD | €57.39 | €4.19 | €3.20 | 7% |
Amazon is the straightforward choice for new components — free or minimal shipping, no fees, buyer protection. No surprises.
Subito (the Italian marketplace for used goods) is where the interesting savings happen, but comes with real overhead. Shipping (€6-7 per item) and buyer protection fees (4-6% commission) add up: on three items totaling €270 in listed prices, I paid an extra €37.07 in shipping and fees — a 14% markup over the listed prices. Still far cheaper than buying new, but worth factoring in when comparing “used price” listings.
AliExpress deserves special mention for the Sagittarius case. The case itself was listed at €66 — reasonable for an 8-bay hot-swap mATX case. But international shipping added €55.74, nearly doubling the base price. The €121.75 total is still excellent for what the case offers (there’s nothing comparable at this price in Europe), but the shipping cost is a brutal reminder that AliExpress prices aren’t as cheap as they look.
Vinted for the SSD was a one-off. The Transcend 500 GB at €50 + fees was a reasonable deal for a boot drive. It’s not where I’d normally shop for components, but the price was right for a used SSD that only needs to run the OS.
The Hidden Costs
Let’s be honest about the real cost beyond the listed prices:
| Cost Type | Amount | % of Component Prices |
|---|---|---|
| Component prices | €700.81 | — |
| Total shipping | €76.11 | 10.9% |
| Total fees/commissions | €27.09 | 3.9% |
| All-in total | €804.00 | 14.7% overhead |
Nearly 15% of the build cost is shipping and fees — over €100 that doesn’t buy any compute power, storage capacity, or cooling performance. This is the reality of building a homelab from mixed sources in Europe: marketplaces take their cut, shipping costs are real (especially international), and the advertised prices are never the final prices.
How Does This Compare?
Let’s put €804 in context:
vs. a NAS appliance: A Synology DS923+ (4-bay, no drives) costs ~€550-600. It has a fraction of the CPU power, maxes out at 32 GB RAM, and has no PCIe expansion for a GPU. For €200 more, this build has 6 cores, 64 GB RAM, 8 hot-swap bays, and room for a GPU. And it runs Proxmox — not a locked-down proprietary OS.
vs. a used enterprise server: A Dell PowerEdge T340 or HP ProLiant ML30 with similar specs runs €400-600 used. But they’re loud (enterprise fans), power-hungry (200-300W idle), physically massive, and the hardware is 2-3 generations old. This build idles at 25-35W, fits on a shelf, and runs whisper-quiet.
vs. a mini PC approach: A decent N100 mini PC costs €150-200 but tops out at 16 GB RAM, has no expansion, no hot-swap storage, and an Atom-class CPU. It’s fine for a single-purpose device, but not for a do-everything homelab. I tried that route with the NiPoGi — and ended up planning this build when it hit its limits.
vs. cloud hosting: A VPS with 6 vCPUs, 64 GB RAM, and 500 GB storage costs roughly €100-200/month depending on the provider. This build pays for itself in 4-8 months versus cloud, then runs essentially free (plus ~€30-40/year in electricity at European rates for a 30W idle draw).
What’s Not Included
This €804 covers the base system only. Still needed for the complete homelab:
- 3.5” HDDs for NAS storage — the hot-swap bays are ready, the drives aren’t purchased yet
- GPU for AI inference — a future addition when the right deal appears
- 10GbE NIC or HBA card — for when the network or storage setup demands it
- Additional NVMe SSD — the second M.2 slot is empty, ready for fast VM/container storage
These are all intentional gaps. The base system is complete and operational without them — Proxmox can run from the 500 GB SSD, the 2.5GbE onboard NIC is sufficient for now, and AI inference can wait. Each addition is a future project with its own budget and article.
What’s Next
The parts list is final. Next: putting it all together, installing Proxmox, and seeing if all these carefully chosen components actually work as planned.