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used mini pcs

HP · 2018

HP EliteDesk 800 G4 Desktop Mini

The EliteDesk 800 G4 Desktop Mini moved HP's 1-liter business PC to 8th-gen Coffee Lake and the Q370 chipset, so most used units are six-core: the Core i5-8500T is the common one, and HP also sold 65 W and 95 W desktop-CPU versions. The main reason homelab buyers pick it over the G3 is storage: two M.2 2280 NVMe slots plus a 2.5-inch bay, though HP didn't pair the 2.5-inch drive with a second M.2. It has an Intel I219-LM NIC, Intel AMT on vPro Core i5/i7 units, and a configurable rear port that can be HDMI, Thunderbolt 3, serial or fiber. HP lists 32 GB of RAM as the maximum. It's a solid Proxmox or Plex node, but it only has 1 GbE onboard.

Good for

Badges come from the spec rules on each use page, not from guesswork.

HP EliteDesk 800 G4 Desktop Mini in black and silver, three-quarter front view showing the hp logo, ELITEDESK lettering, USB-C and two USB-A ports, audio jacks and power button
Representative photo — AI-generated from real seller photos. Individual listings vary. How we make these →

Specs that matter used

CPU generation
Intel 8th Gen (Coffee Lake / Whiskey Lake / Kaby Lake-R)
CPU options
Core i5-8500T, Core i5-8600T, Core i7-8700T, Core i3-8100T, Core i3-8300T, Core i5-8500 (65 W), Core i7-8700 (65 W), Core i7-8700K (95 W), Pentium Gold G5400T, Celeron G4900T
Form factor
1-liter business mini
Released
2018
Memory
DDR4-2666 SO-DIMM, 2 slots
Max RAM (official)
32 GB — HP lists 32 GB; commenters on ServeTheHome's review report 2×32 GB (64 GB) working. Not an HP-supported configuration.
Storage
2× M.2 2280/2230 PCIe x4 NVMe + 1× 2.5-inch SATA bay. HP does not offer the 2.5-inch drive together with a second M.2 SSD, a discrete GPU or a 95 W CPU, and an STH reader reports the second M.2 drive can foul the 2.5-inch tray. M.2-only units ship without the SATA drive bracket.
Ethernet
1 × 1 GbE (Intel I219-LM. Configurable rear port (one of): DisplayPort 1.2, HDMI 2.0, VGA, USB-C (alt mode or Power Delivery), Thunderbolt 3, serial, or fiber NIC; no 2.5 GbE option on this generation)
Wi-Fi
M.2 2230 slot (PCIe x1); Intel 9560 or Realtek RTL8822BE/8821CE cards were factory options, with internal antennas and an external antenna punch-out
vPro / AMT
Some CPU options
Cooling
Fan-cooled
Power adapter
HP external 19.5 V adapter: 65 W, 90 W or 150 W depending on CPU and options
Discrete GPU
Optional AMD Radeon RX 560 4 GB module (with a DisplayPort 1.4 output) on some configurations, per HP's QuickSpecs and service guide
Measured idle draw
11–12 W (ServeTheHome measured 11-12 W idle at 120 V on a Core i5-8500T unit with a 65 W adapter; source)
Windows 11
CPU generation is on Microsoft's supported list
Spec sources

Check before you buy

General off-lease checks (BIOS passwords, Computrace, missing drive caddies) are in the used mini PC buying checklist.

Buying guide

Which one to buy

Oct 4, 2026

141 EliteDesk 800 G4 Minis are listed, and most complete units run $120–300 delivered, with an i5-8500, 8 GB and a 256 GB SSD from about $115 and 16 GB units around $210–250. Check the CPU and adapter: 65 W i5-8500 and i7-8700 units (often titled '65W' or 'DM 65W') need HP's higher-wattage adapter rather than the 65 W one, and run louder than 35 W T-series units. Confirm there's no BIOS admin password, and skip asks above double the median, several of them from one seller.

Listed now
141
For parts
0
Typical ask
$120–$300
Full range
$90–$537

Snapshot

Live on eBay right now

8 of 141 listed

Snapshot captured — listings may have ended

Delivered prices include shipping as eBay quoted it to a US address on Oct 4, 2026. Many sellers charge by distance, so your total may differ; eBay shows your exact total before you buy.

Prices and availability change daily. The full, current search on eBay shows every matching listing, including new ones since Oct 4, 2026.

See all current listings on eBay ↗eBay search

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