For years the standard homelab advice was simple: buy a cheap barebones mini-PC, then stuff it with the RAM you need. In 2026, that advice quietly stopped working. The memory shortage has made the RAM the most expensive part of the build — sometimes more expensive than the computer around it. So the smart-money play has flipped. Here's what actually gives you the most homelab for your money right now.
Why the old 'buy barebones, add cheap RAM' advice broke
The reason is the AI boom. The big memory makers — Samsung, SK Hynix, Micron — have shifted a large share of their factory capacity to high-bandwidth memory (HBM) for AI data-center chips, because it's far more profitable than ordinary desktop and laptop memory. That's left the consumer market short, and prices have followed.
The result has been brutal. A 32GB DDR5 laptop-style (SODIMM) kit that was $80–120 in late 2025 now runs around $400. And DDR4 — the older memory in most used machines — didn't escape either: a 32GB DDR4 kit that was $60–90 last autumn now sells for roughly $150–180. NVMe SSDs have crept up too, by about $80–100.
| What you're buying | Late 2025 | July 2026 |
|---|---|---|
| 32GB DDR5 SODIMM kit | $80–120 | ~$400 |
| 32GB DDR4 SODIMM kit | $60–90 | $150–180 |
| 1TB NVMe SSD | baseline | +$80–100 |
So the maths that made barebones attractive — cheap shell, cheap memory — is upside down. Today, if you buy an empty machine and add RAM, the RAM can cost more than everything else combined. Barebones only wins now if you're reusing memory you already own, or you're deliberately staying on DDR4.
The 2026 rule: buy RAM-per-dollar, not cores-per-dollar
'Cores per dollar' is the number hardware sites love to quote, and in a normal year it's a fine shortcut. But for a homelab, the thing you run out of first is almost always memory — every VM and container you spin up wants a slice of RAM long before it saturates the CPU. In 2026, with memory scarce and expensive, that makes RAM the real constraint on how much you can run.
The practical upshot: the best-value machine isn't the one with the most threads on paper. It's the one that comes with usable RAM already installed — or has a high memory ceiling you can grow into using DDR4 you buy while it's still (relatively) affordable. A six-core micro with 32GB already in it beats an eight-core barebones you'd have to feed with a $400 memory kit.
What to actually buy (best value first)
1. Used enterprise micros — the value king
Dell OptiPlex Micro, HP EliteDesk and ProDesk Mini, and Lenovo ThinkCentre Tiny machines from the 8th–10th Intel generations are the sweet spot. They run on DDR4, so they dodge the worst of the shortage; they take two SODIMM sticks up to 64GB; they have an NVMe slot plus a 2.5-inch drive bay; and the low-power 'T' chips idle at a gentle 15–25W. Expect roughly $70–180 depending on the model and how much RAM is already inside.
2. New DDR4 Ryzen barebones — if you want new, with a warranty
If a used machine makes you uneasy, new mini-PCs built on Ryzen 5000 chips (like the 5825U, 8 cores / 16 threads) still use DDR4 and land around $180–250 as barebones. You'll pay for the memory on top — but at least it's DDR4, not DDR5.
3. New DDR5 Ryzen — only if you specifically need it
The newest Ryzen minis (7840HS, 8845HS) are genuinely excellent machines. But they use DDR5, so in 2026 you pay the shortage tax on the memory. Buy one because you need its horsepower or its newer features — not as a value play.
4. Skip the new N100/N150 for this
The little Intel N100 and N150 boards are popular and cheap, but they top out at low core counts and modest memory. They're great for a single appliance — a Pi-hole, a small backup target — but they add machines to your rack rather than capability. For a do-everything homelab node in 2026, your money goes further on a used six-core micro.
The shortlist (used micros, July 2026)
These are current asking prices on the usual marketplaces. Read the caveats below before you buy — asking prices run well above what these machines actually sell for.
| Model | CPU | Cores | RAM ceiling | ~Price | Notes |
|---|---|---|---|---|---|
| HP EliteDesk 800 G4 Mini | i5-8500T / 8600T | 6C / 6T | 64GB DDR4 | $70–100 | Cheapest solid pick; quiet and reliable |
| Lenovo ThinkCentre M720q | i5-8500T | 6C / 6T | 64GB DDR4 | $80–110 | Has a PCIe slot to add a NIC later |
| Dell OptiPlex 3060 Micro | i5-8500T | 6C / 6T | 32GB DDR4* | $65–90 | Cheapest — but check the RAM ceiling |
| Lenovo ThinkCentre M920q | i5-9500T / i7-8700T | 6C | 64GB DDR4 | $100–140 | Newer chip; PCIe slot for a NIC |
| Dell OptiPlex 7060 Micro | i7-8700T | 6C / 12T | 64GB DDR4 | ~$130 | Most threads for the money |
*Some Dell 3060 Micro configurations (and certain BIOS versions) cap at 32GB rather than 64GB. If a big memory ceiling matters to you, confirm it for the exact unit before buying.
Our pick
For most people, the best-value buy in 2026 is a step below the flashiest option: a six-core i5-8500T micro — an HP EliteDesk 800 G4 Mini or a Lenovo ThinkCentre M720q — for $70–110, bought with 16 or 32GB of RAM already installed. You get a proper 64GB memory ceiling, low idle power, and enterprise build quality, and you sidestep the shortage entirely because the memory you need is already in the box.
If you know you'll run a lot of small VMs and want the extra threads, the Dell OptiPlex 7060 Micro (i7-8700T, 12 threads, ~$130) is the sensible step up — 12 threads for less than the price of a single stick of DDR5. But don't pay up for cores you won't use while memory is this expensive. The RAM is where your budget really goes this year.
Before you buy — the honest bits
A buying guide that only tells you the good parts isn't much use. Four things to keep in mind:
- Asking price isn't the selling price. The numbers above are active listings, which typically run 20–40% higher than what these machines actually sell for. Watch completed and sold listings, and don't be shy about offering less.
- Buy it with the RAM already in it. This is the whole point in 2026 — a unit that already includes 16–32GB is worth paying a little more for than an empty one you'd have to feed with expensive memory.
- None of these have 2.5GbE. Every used micro here ships with plain gigabit networking. That's fine for most home setups; if you need faster, the Lenovo Tiny models have a slot for a network card, or a USB 2.5GbE adapter runs about $15.
- Confirm it's genuinely complete. Make sure the listing includes the power adapter, and that 'barebones' means what you think — some are sold with no RAM, no drive, and no PSU. A truly complete unit with memory already inside is the one you want.