Power supply adapters from US brands and US-based sellers
9 US brands and sellers surfaced here at $17.90 to $129.99, each verified from Amazon's own published seller info. Shoppers viewed this category's pages 19 times in the last 30 days. Last verified August 16, 2026.
A power adapter's only job is to deliver the right voltage and amperage without frying itself or your device, and that reliability costs real copper and real testing. Established sellers here run about $18 to $130; anything priced well under that floor usually got there by skipping one of those two things.
What to look for in a good power supply adapter
- Match the amperage. Check that the output amps meet or exceed what your device actually draws, not just that the voltage number matches, since an underpowered adapter runs hot and starves the device at the same time.
- Look for certification marks. A real UL or ETL mark stamped into the housing means the adapter passed independent safety testing, while throwaway units often print a lookalike logo or leave it off entirely.
- Weigh the brick. Heft it in your hand: a heavier brick and a thicker cord gauge usually mean more copper winding and shielding inside, while a suspiciously light one is hollowed out to save on material.
- Check the plug fit. The barrel tip or USB connector should slide in and lock snugly with no side to side play, because a loose fit means intermittent power now and a worn out contact later.
We read each seller's registered country from Amazon's own published seller info. We don't claim anything here is manufactured in the US, only that you're buying from a US brand or a US-based seller.
Quick comparison
| Brand | Price | Seller |
|---|---|---|
| LEDwholesalers | $37.79 | US brand |
| Mean Well | $26.99 | US brand |
| Nekmit | $32.39 | US brand |
| Anker | $25.99 | US-based seller |
| Bel Power Solutions | $129.99 | US-based seller |
| Rockville | $24.95 | US-based seller |
| SUPERNIGHT | $20.99 | US-based seller |
| Triad Magnetics | $17.90 | US-based seller |
| Tripp Lite | $21.64 | US-based seller |
Confirmed US brands and sellers
9 listings where Amazon's own seller info places the seller in the US. Each badge says which.
LEDwholesalers 12V 12.5A 150W AC/DC Power Adapter with 5.5x2.5mm DC Plug and 2.1mm Adapter, Black, UL-Listed, 3229-12VR2
Mean Well GST60A12-P1J 12V 5 Amp 60W Regulated Switching Table Top Power
Nekmit Flat USB Wall Charger, 65W GaN Fast Charging USB C Charger Block, Dual USB Ports Wall Plug Power Adapter for iPhone 15 Pro Max/iPad Pro and More, White
Anker Nano Travel Adapter, 2 USB C Universal Charger, 20W, 1Ć 2-Pin AC
BEL Power MBC75-1T12L Switching Power Supplies 75W 12Vout 6.25A Medical
Rockville PSP5 Universal 48V Phantom Power Supply for Condenser Microphones
SUPERNIGHT 12V 30A Switching Power Supply, 110-240 Volt AC to DC 360W Universal Regulated Switching Transformer Adapter Driver for 3D Printer, CCTV, Radio, LED Strip Lights,Computer Project
TRIAD MAGNETICS WSU090-0800-13 AC/DC Power Supply, 1 Output, 7.2 W, 9 V, 800 mA
Tripp Lite Heavy-Duty Power Adapter Cord L5-20R to 5-20P, 20A, 12AWG (NEMA-L5-20R to NEMA-5-20P) 8.66-inch, Black, (P044-06I)
US brands we went looking for
More names an AI suggested for this category that we haven't confirmed US on yet. Each badge says how far we've checked it.
APC UPS 600VA/330W UPS Battery Backup for Computer, Router, NAS, BE600M1
Belkin MacBook Charger, 100W Compact GaN USB C Charger Block, Fast Charging
CyberPower CPS160PPB2UāFC 160W Power Inverter
Suggested, not verified. These names came from an AI suggestion, not from our data. We only call a brand US after checking the seller's registered address on its Amazon seller page. Amazon is the seller on these, so its seller page can't tell us who the brand is.
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