HP EliteDesk 800 G4 Mini
A 2018 EliteDesk Mini on the Q370 chipset with 2 M.2 NVMe slots, 1 2.5" bay and up to 32 GB of RAM (official). It has a vendor slot for a second network port.
Good for 4K HEVC; no AV1 decodeSpecs widely confirmed
Used price
Currently from $90 on eBay US (median $220 across 33 used listings, checked 11/9/2026)
Asking prices of active fixed-price listings; configuration (CPU, RAM, SSD) varies.
Used EliteDesk 800 G4 Mini units on eBay US currently start at $90, and the typical asking price is about $220 across 33 fixed-price listings. The spread mostly reflects the CPU fitted (i5-8500T, i7-8700T), RAM and SSD included, and whether a power adapter is in the box.
Specifications
| CPU generations | 8th gen (Coffee Lake) |
|---|---|
| Typical CPUs | Core i5-8500T (6C/6T, 35 W); Core i7-8700T (6C/12T, 35 W) |
| Chipset | Q370 |
| Memory | 2× DDR4 SO-DIMM, up to 2666 MT/s, 32 GB official maximum |
| M.2 NVMe slots (storage) | 2 |
| 2.5" SATA bays | 1 |
| PCIe expansion | None |
| Onboard Ethernet | Intel I219-LM |
| Extra NIC option | HP Flex IO module (e.g. second Ethernet port) |
| Faster networking | No 2.5/10GbE path beyond USB adapters |
| vPro / AMT | On vPro CPU configurations |
| Power adapters | 65 W or 90 W |
| Idle power (measured) | 11–12 W at the wall (ServeTheHome, Six-core Core i5-8500T) |
Checked against: HP QuickSpecs (EliteDesk 800 G4), HP Maintenance and Service Guide. Official limits can be lower than what owners report working.
What owners should know
- Up to three drives: HP QuickSpecs list two internal M.2 SSD connectors (2230 or 2280) plus one 2.5" SATA bay.
- The Flex IO port can take an HP network module, giving a second NIC without USB adapters.
- Owners commonly run 64 GB, but HP's official maximum is 32 GB.
Power consumption
| Idle | Load | Configuration | Method | Source |
|---|---|---|---|---|
| 11–12 W | – | Six-core Core i5-8500T | Wall meter at 120 V, idle (ServeTheHome test setup) (2020-10-18) | ServeTheHome: HP EliteDesk 800 G4 Mini TinyMiniMicro guide & review (cited via homelab-mini-pc-dataset (CC BY 4.0)) |
Third-party readings we have not re-measured. Your drives, BIOS power settings and OS change idle draw; see how to measure it or send your own reading.
What to buy with it
- 32 GB RAM kit2 × 16 GB DDR4 SODIMM, 2666 MT/s or faster (runs at 2666)2 SODIMM slots, 32 GB official maximum. DDR4 laptop-size modules (not desktop DIMMs, not DDR5).
- 2 × NVMe SSDM.2 2280 NVMe SSD (PCIe), e.g. 1 TB with DRAM cache or HMB for VM storage2 M.2 2280 storage slots. Two drives allow a ZFS mirror or separate boot and VM storage.
- 2.5" SATA SSD + caddy · optional2.5" SATA SSD (7 mm), plus the model's drive caddy/cable if the unit did not ship with one1 × 2.5" bay.
- Second network port · optionalHP Flex IO module (e.g. second Ethernet port)Vendor module: match the exact module version to this generation before buying.
- Power adapter (if missing) · optionalHP 65 W or 90 W adapter with the correct connectorMany ex-office units are sold without one. Use the wattage the manufacturer lists for the CPU fitted.
We list the spec to look for rather than a price, because part prices change daily and we only show prices from a live source.
Plex and Jellyfin transcoding
Handles 10-bit HEVC (typical 4K HDR) in hardware. No AV1 decode, so AV1 files fall back to the CPU. The table covers every CPU option sold in this chassis. Check which CPU a listing actually has.
| Video engine | H.264 | HEVC 10-bit decode | VP9 | AV1 decode | HEVC encode |
|---|---|---|---|---|---|
| Intel Quick Sync (Kaby Lake–Comet Lake) | Yes | Yes | Yes | No | Yes |
Plex needs a Plex Pass for hardware transcoding; Jellyfin does not. More detail in our Quick Sync generations guide.
Before you buy one used
- Confirm the exact CPU model in the listing photos or System Information screenshot, not just "Core i5".
- Check that a power adapter of the right wattage is included (65 W or 90 W). Many ex-office units ship without one.
- Ask whether the BIOS is unlocked. Ex-corporate machines sometimes keep an admin password.
- A 2.5" drive needs the caddy and cable, which are often missing when a unit shipped with only an M.2 SSD.
Find one
Email me when one is listed under my price
Frequently asked questions
- How much RAM does the EliteDesk 800 G4 Mini support?
- HP's official maximum is 32 GB across 2 DDR4 SODIMM slots at up to 2666 MT/s. Owners commonly run 64 GB, but HP's official maximum is 32 GB.
- How many NVMe SSDs can the EliteDesk 800 G4 Mini hold?
- 2 M.2 NVMe slots for storage plus 1 2.5" SATA bay, so up to 3 internal drives.
- Does the EliteDesk 800 G4 Mini have a PCIe slot?
- No. It has no internal PCIe slot; the only internal expansion is HP Flex IO module (e.g. second Ethernet port).
- Can the EliteDesk 800 G4 Mini use 10GbE or 2.5GbE networking?
- Not internally. It has a 1 GbE Intel I219-LM; faster networking needs a USB adapter.
- Is the EliteDesk 800 G4 Mini good for Plex or Jellyfin?
- Handles 10-bit HEVC (typical 4K HDR) in hardware. No AV1 decode, so AV1 files fall back to the CPU. That applies to the best CPU option (Core i7-8700T, UHD 630); check which CPU a listing has.
- How much power does the EliteDesk 800 G4 Mini use at idle?
- 11–12 W at the wall at idle, as measured by ServeTheHome (Six-core Core i5-8500T, 120 V). Your drives, BIOS settings and OS will change this figure.
Good for
- Two NVMe slots
- Plex / Jellyfin 4K
- Proxmox node
- OPNsense / pfSense router
- Budget home server
- vPro / AMT
- Low idle power (measured)
Related guides
- Which used mini PCs can transcode 4K for Plex and Jellyfin?
- How to check a used mini PC listing before you buy
- Do Lenovo Tiny, OptiPlex Micro and EliteDesk Mini PCs support 64 GB of RAM?
- Mini PC power consumption for a 24/7 home server: how to measure and reduce it
- Choosing a used mini PC for Proxmox: RAM, drives, NICs and clusters
- Mini PC NVMe SSD upgrade guide: slots, sizes and the 2.5" bay
- Mini PC RAM upgrade guide: DDR4 vs DDR5, speeds and slots
- Using a used mini PC as an OPNsense or pfSense router
- Can a used mini PC be a NAS? Drive limits and better options
- Used business mini PC vs a new Intel N100 mini PC for a home server
- Lenovo Tiny, OptiPlex Micro and EliteDesk Mini names explained (TinyMiniMicro)
Head-to-head comparisons
- M920q vs EliteDesk 800 G4 Mini
- EliteDesk 800 G4 Mini vs OptiPlex 7060 Micro
- EliteDesk 800 G3 Mini vs EliteDesk 800 G4 Mini
- EliteDesk 800 G4 Mini vs EliteDesk 800 G5 Mini
Similar models to consider
- Dell OptiPlex 3060 Micro1× NVMe · 32 GB max · no PCIe · Good for 4K HEVC; no AV1 decode
- Dell OptiPlex 7060 Micro1× NVMe · 32 GB max · no PCIe · Good for 4K HEVC; no AV1 decode
- HP EliteDesk 705 G4 Mini1× NVMe · 32 GB max · no PCIe · Works in Jellyfin; Intel is the safer media-server pick