The US-48 is the 48-port sibling of the US-24 in Ubiquiti's first-generation UniFi switches, from the same 2016 datasheet. Its draw for home-labbers is two SFP+ ports that run at 10G, next to two 1G SFP ports and 48 gigabit RJ45 ports. You can run a 10G link to a NAS or a server, or uplink to another switch, on a box that's otherwise a quiet office switch. It's 1U with an internal supply and a fan, draws 56 W at most and has an RJ45 serial console. Like all UniFi switches it's set up from the free UniFi Network app, with VLANs, link aggregation, spanning tree and 802.1X, and it switches at layer 2 only. It has no PoE. The PoE versions are the US-48-500W and US-48-750W. Ubiquiti now calls it the Standard 48 (Gen1) and was still shipping firmware for it in 2026. The Gen2 USW-48 has four 1G SFP ports and no SFP+, so check the model number.
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 brackets or optics, 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 audioguys312's US-48 titled tested at $211 delivered, near the bottom of the band, with the power cord and rack ears in the photo. There are at least 36 for sale and most ask $190–320 delivered, though plain US units with free shipping start at $170, like buynsave2018's with a power cord. The reason to pick it over the US-24 is the two SFP+ ports, so count four fiber cages in the photos, check the label says US-48 with no 500W or 750W after it, and look for a touchscreen, which marks the Gen2 USW-48 with no SFP+. None of these titles include optics, so budget for SFP+ modules or DAC cables. Skip welsm1287's at $377 delivered from a zero-feedback account, and mediavision.solutions' $832 ask.
$128.36est. delivered
The lowest delivered US-48 here at $128, titled US-48-G1 and partially tested, with rack ears in the photo. Ask which ports were checked, and test both SFP+ ports when it arrives.
Ubiquiti UniFi US-48-G1 48-Port Gigabit Switch 2 SFP+ 2 SFP - Partially Tested
$210.89est. delivered
Titled tested, with the power cord and rack ears in the photo, and it's near the bottom of the band. Ask the seller to forget it from their UniFi controller before it ships.
Ubiquiti UniFi Switch 48 (US-48) 48-Port Gigabit Rackmount 1U TESTED
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$128.36est. delivered
$104.99 + $23.37 shipping
Buy It Now$104.99
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.
Good buy
Titled US-48-G1 and partially tested; ask what wasn't checked. Rack ears in the photo.
Seller: pet-5060
99.5% positive
Used$210.89est. delivered
$199.99 + $10.90 shipping
Buy It Now$199.99
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.
Good buy
Titled tested. Photo shows the power cord and rack ears.
Seller: audioguys312
100% positive
Used$170.00delivered
$170.00 · free shipping
Buy It Now$170.00
Our take
Titled with a power cord. No test claim.
Seller: buynsave2018
99.8% positive
Used$227.62est. delivered
$199.99 + $27.63 shipping
Buy It Now$199.99
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 with 2 SFP+ and 2 SFP ports. No test claim.
Seller: potomacestore
99.9% positive
Used$246.22est. delivered
$180.00 + $66.22 shipping
Buy It Now$180.00
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.
Our take
Photo shows two switches for a one-unit title; confirm what ships. $66 shipping.
Seller: sprinterit
100% positive
Used$246.59est. delivered
$224.99 + $21.60 shipping
Buy It Now$224.99
Our take
Rack ears in the photo, with the seller's stock number in the title. No test claim.
Seller: churchgear
99.8% positive
Used$377.30est. delivered
$172.50 + $204.80 shipping
Buy It Now$172.50
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
Zero-feedback account with $205 shipping.
Seller: welsm1287
No feedback yet
Used$831.85est. delivered
$650.00 + $181.85 shipping
Buy It Now$650.00
Priced high
Over three times the band median. Boxed photo, but the title doesn't say new.
Seller: mediavision.solutions
100% positive
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