Minisforum · 2023
The UM790 Pro is Minisforum's Ryzen 9 7940HS mini PC: 8 Zen 4 cores, Radeon 780M graphics and a Ryzen AI NPU. It takes two DDR5-5600 SO-DIMMs up to 64 GB and two PCIe 4.0 NVMe SSDs, and has two 40 Gbps USB4 ports on the front, two HDMI 2.1 outputs, four 10 Gbps USB-A ports and a single Realtek 2.5 GbE port. ServeTheHome measured just 5-7 W at idle and 80-85 W under load from its 120 W adapter, and noise only 1-2.5 dBA above its studio floor. That makes it an unusually efficient, quiet 780M box for a desktop, a 24/7 home server or light gaming. Limits: one Ethernet port and no 2.5-inch bay.
Good for
Badges come from the spec rules on each use page, not from guesswork.
General off-lease checks (BIOS passwords, Computrace, missing drive caddies) are in the used mini PC buying checklist.
Buying guide
This snapshot caught 10 UM790 Pro listings (eBay's own count mixes in other UM790 variants, so we don't quote it), and most complete 32 GB units ask about $675–925 delivered. Every unit has the same Ryzen 9 7940HS, so compare RAM, SSD and whether the 120 W 19 V adapter is included; a barebones unit is far cheaper but needs DDR5-5600 SO-DIMMs and an NVMe SSD. Avoid the identical '32GB Win11 Radeon 780M' title that also appears under a zero-feedback seller, and the 94.6% seller asking $941 for a unit with no RAM.
$325.00delivered
The lowest ask at $325 delivered with Best Offer from a 100% seller, but it's a barebones unit with no RAM or SSD per the title. Budget for two DDR5-5600 SO-DIMMs and an NVMe SSD, and confirm the 120 W adapter is included.
MinisForum UM790 PRO Mini PC w/ AMD Ryzen 9 7940HS Barebone SFF PC NO
$812.00est. delivered
A new, sealed unit per the title with 32 GB and a 1 TB SSD for about $812 delivered with Best Offer from a 99.7% seller, mid-band. 32 GB in two slots suits the Local LLM tier or an AI agent server.
NEW SEALED 32GB DDR5 Minisforum UM790 Pro Ryzen 9 7940HS 1TB SSD Radeo
Snapshot
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.
Used$325.00delivered
$325.00 · free shipping
Buy It Now$325.00
This seller takes offers, and sellers often accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
Barebones Ryzen 9 7940HS at $325 delivered from a 100% seller; add DDR5 RAM and an NVMe SSD, and check the adapter is included.
Seller: cappuccinopc
100% positive
Used$812.00est. delivered
$800.00 + $12.00 shipping
Buy It Now$800.00
This seller takes offers, and sellers often accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
New and sealed per the title, with 32 GB and a 1 TB SSD, about $812 delivered from a 99.7% seller.
Seller: deals-on-72
99.7% positive
Used$777.38est. delivered
$750.00 + $27.38 shipping
Buy It Now$750.00
This seller takes offers, and sellers often accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
32 GB and a 512 GB SSD, about $777 delivered with Best Offer from a 97.5% seller; read the seller's recent feedback first.
Seller: dgolden625
97.5% positive
Used$1,494.99est. delivered
$1,245.00 + $249.99 shipping
Buy It Now$1,245.00
Our take
32 GB with Windows per the title, but about $1,495 delivered with $250 shipping, roughly $570 over the band; pass.
Seller: viva-japan-finds
100% positive
Used$656.11est. delivered
$650.00 + $6.11 shipping
Buy It Now$650.00
This seller takes offers, and sellers often accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Heads-up: check the seller
About $656 delivered from a seller with zero feedback, using a title identical to another seller's listings; avoid.
Seller: buel_ra
No feedback yet
Used$760.93est. delivered
$750.00 + $10.93 shipping
Buy It Now$750.00
This seller takes offers, and sellers often accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Heads-up: check the seller
32 GB with Windows 11, about $761 delivered from a 100% seller, but a zero-feedback seller copies this exact title; ask for photos of this unit and the SSD size.
Seller: mcgsta0
100% positive
Used$860.93est. delivered
$850.00 + $10.93 shipping
Buy It Now$850.00
This seller takes offers, and sellers often accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Heads-up: check the seller
The same seller's identical-title listing at about $861 delivered, $100 more than its other one; ask what differs.
Seller: mcgsta0
100% positive
Used$941.12delivered
$941.12 · free shipping
Buy It Now$941.12
Heads-up: check the seller
About $941 for a unit with no RAM from a 94.6% seller, more than a complete 32 GB unit costs; avoid.
Seller: leskovichandco
94.6% positive
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