The US-24 is the plain 24-port member of Ubiquiti's first-generation UniFi switches, covered by a 2016 datasheet alongside the US-48. It's a 1U rack switch with 24 gigabit ports, two 1G SFP uplinks, an RJ45 serial console and an internal power supply, and it draws 25 W at most. It has no PoE. Ubiquiti sold the PoE versions as the US-24-250W and US-24-500W. There's a fan, though the datasheet puts it only 1.6 to 9.2 dB above a quiet room. You configure it from the free UniFi Network app, with VLANs, link aggregation, spanning tree, 802.1X and port mirroring, and it switches at layer 2 only. Home-labbers like it as a quiet rack switch that slots into a UniFi network next to their access points. Ubiquiti now calls it the Standard 24 (Gen1), and it was still getting firmware in 2026. The Gen2 USW-24 is a different switch with a small touchscreen.
Lab check
Should come with it
Check the listing photos against this list, and ask the seller about anything you can’t see. A missing piece should come off the price.
If UniFi Network shows it as Managed by Other, it's still adopted to another controller and needs a factory reset before you can adopt it. Beyond that, most trouble is the previous owner's setup and missing rack brackets, not the hardware.
Buying your first used switch or router? How to check used network gear covers the console, a factory reset, power supplies and optics, and our noise and power guide covers what fans and power draw mean at home.
Buying guide
We'd buy barnettelec's US-24 at $239 delivered, the only one here titled tested, with the power cord and rack brackets in the photo. There are at least 38 for sale, and most US used ones ask $160–240 delivered with no test claim, like animuscompute's at $160 with two UF-MM-1G fiber modules. Check the label says US-24 with no 250W or 500W after it, since those are the PoE models, and look for a small touchscreen, which marks the Gen2 USW-24. Ask the seller to forget it from their UniFi controller, or plan on holding reset for five seconds before you adopt it. Skip cybertrading_gmbh's $433, a VAT-inclusive business listing from Germany with $167 shipping.
$113.76est. delivered
The lowest price on a US-24 right now, $114 delivered at the current $100 with no bids, so expect it to climb. The photo shows a power cord and the retail box, but there's no test claim, so plan on a reset and a fresh adoption.
Ubiquiti Networks UniFi Switch 24 US-24 24-Port Gigabit Managed Rack w/ SFP
$239.19est. delivered
The only US-24 here titled tested, and the photo shows the power cord and both rack brackets, which is the hardware in the title. It's at the top of the band, so it's the one to pick if you'd rather pay for the testing than do it yourself.
Ubiquiti UniFi 24-Port Managed Gigabit Switch US-24 Used & Tested w/HRDW
Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Used$113.76est. delivered
$100.00 + $13.76 shipping
Auction · no bids yet · ends in 1d
Good buy
Auction with no bids yet; it will climb. Photo shows the box and a power cord. No test claim.
Seller: 2011tinman7162
100% positive
Used$239.19est. delivered
$199.95 + $39.24 shipping
Buy It Now$199.95
This seller takes offers, and many sellers 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
Titled used and tested. Photo shows the power cord and rack brackets.
Seller: barnettelec
100% positive
Used$159.99delivered
$159.99 · free shipping
Buy It Now$159.99
Our take
Titled with two UF-MM-1G fiber modules, which most listings lack. No test claim.
Seller: animuscompute
99.7% positive
Used$176.19est. delivered
$159.99 + $16.20 shipping
Buy It Now$159.99
Our take
eBay's catalog title, shared by other sellers, but the photo is a real unit. No test claim.
Seller: cypher.technologies
100% positive
Used$179.99delivered
$179.99 · free shipping
Buy It Now$179.99
This seller takes offers, and many sellers 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
Titled non-PoE, with rack ears fitted in the photo. No test claim.
Seller: coretek10
99.7% positive
Used$179.99delivered
$179.99 · free shipping
Buy It Now$179.99
Our take
eBay's catalog title, shared by other sellers. Real photo with rack ears; no test claim.
Seller: dyminsystems
99.6% positive
Used$175.00delivered
$175.00 · free shipping
Buy It Now$175.00
This seller takes offers, and many sellers 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.
Check the seller
No photo of the switch, just the seller's logo. Ask for photos of the label.
Seller: dedicatednetwork
100% positive
Refurbished$432.90est. delivered
$265.54 + $167.36 shipping
Buy It Now$265.54
This seller takes offers, and many sellers 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.
Priced high
VAT-inclusive B2B listing from Germany with a 3-year warranty and $167 shipping. Photo is a product render.
Seller: cybertrading_gmbh
99.4% positive
Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 15, 2026.
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