9.4Our score 4 photosRELIABLE AC TO DC CONVERSION - This regulated bench power supply converts 120V AC to a stable 13.8V DC power supply, providing dependable po
Ranked #99 in PC Parts · 4 things we like
Quick answer The Pyramid 7A Bench Power Supply scores 9.4/10 with us. Amazon owners rate it 4.7 out of 5 across 736 reviews, in line with the 4.6 average of the 22 power supplies we track. It was listed at $51.29 on Amazon when we last checked in September 2026.
Power your equipment with confidence using the Pyramid 7 Amp Regulated Bench Power Supply. This compact power supply delivers stable 13.8V DC output by converting standard household AC power into reliable DC power for CB radios, HAM radios, scanners, and other compatible devices. Its regulated design helps provide consistent performance for testing, repairs, and everyday operation.
This ac dc converter features dual USB charging ports, universal banana terminals, and a front-mounted cigarette lighter socket for powering multiple devices from one compact unit. The durable metal enclosure, integrated heat sink, and built-in overload and short-circuit protection help ensure safe, reliable operation. Ideal for hobbyists, technicians, and home workshops, this 12 volt power supply also functions as a dependable voltage regulator for many low-voltage applications.
Whether you're assembling an e
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| Connector Type Used on Cable | USB Type A |
|---|---|
| Input Voltage | 120 volts |
| Output Current | 4.5 A |
| Output Voltage | 13.8 volts_of_direct_current |
| Item Dimensions | 7.7 x 4.9 x 2.8 inches |
| Color | Charcoal |
| Brand | Pyramid |
|---|---|
| Model Number | PSU990KX.5 |
| Item Highlight | 13.8V regulated bench power supply with dual USB ports, cigarette lighter socket, and short-circuit protection |
| Number of Items | 1 |
| Mfr Part Number | PSU990KX.5 |
| Warranty Description | 1 Year Warranty |
Yes, it is one of the stronger picks in its group. We score the Pyramid 7A Bench Power Supply 9.4 out of 10. Amazon owners rate it 4.7 out of 5 across 736 reviews, in line with the 4.6 average of the 22 power supplies we track.
It was listed at $51.29 on Amazon when we last checked in September 2026. That is close to the $50.64 median for power supplies in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.
Amazon lists 2 options. Color: Charcoal, Black. Pick an option on this page and the button opens exactly that model.
Similar, well-rated power supplies in our catalog: HANGELL DC Power Supply Variable (9.2/10, 4.6 stars from 332 owners); LEKATO Guitar Pedal Power Supply (9.2/10, 4.6 stars from 331 owners); HYELEC Variable DC Power Supply (9.2/10, 4.6 stars from 269 owners).
HANGELL DC Power Supply VariableLEKATO Guitar Pedal Power SupplyHYELEC Variable DC Power Supply
Breakdown from the 10 most helpful reviews we imported.
Works great. Glad there are usb ports as well. Charge my phone and watch on it. Run both my scanner and radio at same time on it, No Problems. I was doubtful because of the amps, but it works great. It is alot SMALLER than the old one I used to have.
works as advertised, my daily supply for working my ham radios outside.
This thing works great for trying 12 volt powered items before installation or after making repairs.
Good cheap power supply
It's compact size fits easily on a bench or desk. It offers a stable 13.8V output for basic radio equipment. The convenient USB charging ports and cigarette lighter outlet make it versatile. Easy plug-and-play operation. Good value for the price.
Big bold lettering in the description that it is a 7 amp power supply. I was looking at all the other Pyramid power supplies and all of them have the descriptions that match the rated current and then show a surge current. The 7 amps is the surge current and the output is a continuous 4.5 amps.Of course I didn't notice this until after I went through the checkout. The output is enough to run my transmitter, but it is the rated draw. Tried looking through the documents to see what the surge time was but it's not listed. Could be 3 cycles, 3 seconds or 20 seconds - who knows.I've plugged my radi
Product received as described, use this with a Anytone AT-778UV ham radio, no problems works great
For the price if it breaks just buy another one. Back in the 90s the same power supply would have cost you $550
Customer reviews are shown as published on Amazon and are not written by Do Best Deal.
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