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used mini pcs

Dell · 2019

Dell OptiPlex 7070 Micro

The OptiPlex 7070 Micro is Dell's 2019 top-tier Micro, on Intel's Q370 chipset with an I219-LM NIC and AMT support. Dell's setup guide lists both 8th- and 9th-gen processors: 35 W T-series chips up to the eight-core Core i9-9900T, and 65 W desktop chips up to the Core i9-9900, which ship with a 130 W adapter. The official memory ceiling is 32 GB across two DDR4-2666 SO-DIMMs, though ServeTheHome ran 2x 32 GB successfully. Storage is one M.2 2280 SATA/NVMe slot plus a 2.5-inch bay. Power matters here: on a 65 W brick, ServeTheHome's 35 W unit warned and dropped to a reduced-performance mode until it got the 90 W adapter Dell specifies. STH measured just over 13 W idle and over 60 W peak on a Core i5-9500T. It makes a strong, quiet six-to-eight-core homelab node.

Good for

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

Dell OptiPlex 7070 Micro mini PC in black, three-quarter front view showing the power button, audio jacks, USB-C and blue USB-A ports, silver Dell logo plate and diamond-lattice grille
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), Intel 9th Gen (Coffee Lake Refresh)
CPU options
Core i3-9100T, Core i5-9500T, Core i5-9600T, Core i7-9700T, Core i9-9900T, Core i7-9700 (65 W), Core i9-9900 (65 W), Core i7-8700T
Form factor
1-liter business mini
Released
2019
Memory
DDR4-2666 SO-DIMM (2400 MHz with Core i3), 2 slots
Max RAM (official)
32 GB — ServeTheHome ran 2x 32 GB Samsung SO-DIMMs (64 GB) successfully; this is above Dell's official 32 GB and not supported by Dell. https://www.servethehome.com/dell-optiplex-7070-micro-project-tinyminimicro-guide-and-review/2/
Storage
1x M.2 2280 slot for SATA or PCIe Gen3 x4 NVMe SSDs, 1x 2.5-inch SATA bay with a tool-less tray (SATA connector is hard-mounted).
Ethernet
1 × 1 GbE (Intel I219-LM gigabit with Intel AMT support)
Wi-Fi
M.2 2230 WLAN slot; Dell offered Qualcomm QCA61x4A or Intel Wireless-AC 9560. Optional; ServeTheHome notes retrofitting Wi-Fi means adding antennas.
vPro / AMT
Some CPU options
Cooling
Fan-cooled
Power adapter
90 W for 35 W CPUs, 130 W for 65 W CPUs; a 65 W adapter triggers a warning and reduced-performance mode (ServeTheHome)
Measured idle draw
13 W (ServeTheHome measured 'just over 13W' idle at 120 V on a Core i5-9500T unit (8 GB DDR4-2666, 128 GB NVMe); peak was over 60 W.; 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

269 OptiPlex 7070 Micros are listed, and most complete units run $150–380 delivered, though a complete i5-9500T with 8 GB and an SSD starts at about $130. Look for a named CPU, a stated SSD and the right adapter: Dell specifies 90 W for T-series chips and 130 W for the 65 W i7-9700, which drops into reduced-performance mode on a smaller brick. Titles reading 'up to 64GB RAM & 2TB SSD' are configure-to-order base prices, and the 7070 Micro tops out at 32 GB anyway.

Listed now
269
For parts
0
Typical ask
$150–$380
Full range
$130–$499

Snapshot

Live on eBay right now

8 of 269 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.

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