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Pyramid PS9KX Universal Compact Bench Power Supply-5 Amp Linear Regulated Home Lab Benchtop Converter w/ 13.8 Volt DC 115V AC 70 Watt Input, Screw Type Terminal, 12V Car Cigarette Lighter
Pyramid

Pyramid PS9KX Universal Compact Bench Power Supply-5 Amp Linear Regulated Home Lab Benchtop Converter w/ 13.8 Volt DC 115V AC 70 Watt Input, Screw Type Terminal, 12V Car Cigarette Lighter

Bottom line: The Pyramid PS9KX Universal Compact Bench Power Supply-5 Amp Linear ($53.68 on Amazon as of 2026-10-06): 13.8V DC at 5A continuous, 7A surge headroom; main trade-off: 5A continuous caps it below higher-draw transceivers.

$53.68

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Buy on Amazon — $53.68 Compare to similar power supplies & cables

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 13.8V DC at 5A continuous, 7A surge headroom
  • ✓ Screw terminals plus 12V cigarette lighter socket
  • ✓ Auto-reset fuse with overload and short-circuit protection
  • ✓ Cabinet heatsink and built-in fan for sustained loads

Cons

  • ✗ 5A continuous caps it below higher-draw transceivers
  • ✗ Linear design runs heavier and warmer than switching supplies
  • ✗ Fixed 13.8V output, not a variable-voltage bench supply
  • ✗ 70W input ceiling limits total deliverable power

Manufacturer description

CONVERTS AC TO DC: The Pyramid Bench Power Supply features a linear/regulated design. Provides convenient and reliable AC-to-DC power conversion (12V DC) w/ constant source of DC voltage. Works w/ cellular phones, CB radio, scanner, HAM radio, etc SCREW-TYPE TERMINALS: The features universal hardwired screw-type connection terminals that ensure compatibility with a wide range of devices, equipment, and components. That is used for component and device equipment testing, operation, and performance PLUG-IN OPERATION: The simple plug-in operation provides a constant source of DC voltage…

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SpecPicks Verdict

SpecPicks scored Pyramid PS9KX Universal Compact Bench Power Supply-5 Amp Linear… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. Pyramid's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

What voltage and current does the Pyramid PS9KX put out?

It outputs 13.8V DC at 5 amps constant, with a 7 amp surge rating, from a 115V AC 60Hz 70 watt input.

Can I power a CB or HAM radio with it?

Pyramid lists CB radio, scanner, HAM radio, and cellular equipment as intended uses. Match your radio's current draw against the 5A constant and 7A surge limits before buying.

How do I connect my device to this power supply?

There are universal hardwired screw-type terminals for bare wire, plus a 12V car cigarette lighter socket for devices with an automotive plug.

Does it have short-circuit protection?

Yes. It includes built-in electronic overload and short-circuit protection, and it is fuse protected with auto reset.

Will it overheat if I run it for a long stretch?

It uses a cabinet heatsink and a built-in cooling fan to prevent overheating, and Pyramid rates it as safe for tabletop or desktop placement.

Key Features

  • CONVERTS AC TO DC: The Pyramid Bench Power Supply features a linear/regulated design. Provides convenient and reliable AC-to-DC power conversion (12V DC) w/ constant source of DC voltage. Works w/ cellular phones, CB radio, scanner, HAM radio, etc
  • SCREW-TYPE TERMINALS: The features universal hardwired screw-type connection terminals that ensure compatibility with a wide range of devices, equipment, and components. That is used for component and device equipment testing, operation, and performance
  • PLUG-IN OPERATION: The simple plug-in operation provides a constant source of DC voltage, allowing for quick and consistent power conversion. This Switch-activated power control eliminates the need for an external battery or additional power sources
  • SHORT-CIRCUIT PROTECTION: Equipped with/ built-in electronic overload & short circuit protection to ensure the safety of the operator & any connected electrical device. Also, fuse protected w/ auto reset. Perfectly safe for tabletop or desktop placement
  • BUILT-IN COOLING FAN: This power converter features a cabinet heatsink and a built-in cooling fan to prevent the device from overheating. The Constant amperage is 5A and the surge is 7A w/ power output of 13.8V DC and has 115V AC 60Hz 70W power input

Full Specifications

BrandPyramid
ColorBlack
ModelPS9KX
Warranty1 year
UnitCount1
ReleaseDate2022-03-02T00:00:01Z
ManufacturerSound Around
IsAdultProductfalse
ItemPartNumberPS9KX

Ready to buy?

Pyramid PS9KX Universal Compact Bench Power Supply-5 Amp Linear Regulated Home Lab Benchtop Converter w/ 13.8 Volt DC 115V AC 70 Watt Input, Screw Type Terminal, 12V Car Cigarette Lighter is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $53.68

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Pyramid PS9KX Universal Compact Bench Power Supply-5 Amp Linear Regulated Home Lab Benchtop Converter w/ 13.8 Volt DC 115V AC 70 Watt Input, Screw Type Terminal, 12V Car Cigarette Lighter
$53.68
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