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IronBox Electric - Heavy-Duty 5-15P to C13 Power Cord - 3 Prong 15A 125V 14/3 SJT PC Cable - Cord for Computer, Monitor, Subwoofer, Amplifier - Cable for Power Supply - (Green 1 Foot)
Iron Box

IronBox Electric

Bottom line: The IronBox Electric: 14/3 SJT build: three 14 AWG conductors, heavier than typical 18 AWG PC cords; main trade-off: 1-foot reach is too short unless the device sits next to the outlet.

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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.

Pros & Cons

Pros

  • ✓ 14/3 SJT build: three 14 AWG conductors, heavier than typical 18 AWG PC cords
  • ✓ Rated 15A at 125V, enough headroom for high-wattage PC power supplies
  • ✓ UL Listed for North American electrical safety standards
  • ✓ 1-foot length removes slack between a PC and its UPS or power strip
  • ✓ Green jacket makes one device's power line easy to trace in a crowded strip

Cons

  • ✗ 1-foot reach is too short unless the device sits next to the outlet
  • ✗ Rated 125V only, not for 250V international mains
  • ✗ C13 end won't fit C19 inlets used by some high-draw servers and PDUs
  • ✗ Heavy 14-gauge cord may be less flexible in very tight cable runs

Manufacturer description

The IronBox 5-15P to C13 power cord is a 1-foot, heavy-duty replacement cable for gear that uses the standard three-slot C13 inlet. That includes desktop PCs, monitors, projectors, TVs, powered speakers, subwoofers and amplifiers. One end has a NEMA 5-15P three-prong grounded plug for standard North American outlets. The other end has a C13 connector, the same one found on most computer power supplies. The cable is rated for 15A at 125V and uses 14/3 SJT jacketing. That means three 14 AWG conductors, which is heavier than the 18 AWG found in many bundled PC cords. The cord is UL Listed, so…

SpecPicks Verdict

SpecPicks scored IronBox Electric using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. Iron Box'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

Will this cord fit my computer's power supply?

Yes, if your PSU has the standard three-slot C13 inlet, which most desktop ATX power supplies use. The other end is a NEMA 5-15P grounded plug for standard North American outlets.

What is the amperage and voltage rating?

The cord is rated for 15A at 125V and uses 14/3 SJT cable, which means three 14 AWG conductors in a service-grade jacket.

How long is this power cord?

This version is 1 foot long in green. It suits short runs, such as a PC to a UPS or power strip right beside it, or equipment in a rack or AV cabinet.

Can I use it with a subwoofer, amplifier, or monitor?

Yes, if the device has a C13-compatible inlet. The manufacturer lists computers, monitors, subwoofers, amplifiers, TVs, projectors and speakers as compatible uses.

Is this power cord safety certified?

Yes. The listing states the cord is UL Listed. For warranty coverage, check the current product listing, since terms aren't given in the product details.

Key Features

  • ROBUST CONSTRUCTION, VERSATILE USAGE: Experience the durability of a heavy-duty 5-15P to C13 Power Cord, featuring a 3-prong, 15A, 125V design suitable for computers, monitors, subwoofers, amplifiers, and more. The UL Listed cable ensures reliable power supply.
  • SEAMLESS COMPATIBILITY: This power cord is compatible with a variety of devices, including computers, TVs, projectors, desktops, and speakers. The 5-15P plug to C13 connection provides versatile compatibility, making it an ideal solution for both home and office setups.
  • DURABLE DESIGN FOR LONG-LASTING PERFORMANCE: Invest in a power cord built for longevity. The robust construction ensures durability, providing a reliable and lasting solution for your power needs. Count on this power cord to withstand daily wear and tear.
  • RELIABLE CONNECTIVITY FOR CRITICAL APPLICATIONS: The 3-prong, 15A, 125V power cable ensures a stable and secure connection, crucial for computers, monitors, and amplifiers. The high-quality conductor and SJT cable construction guarantee a reliable power supply.
  • ENHANCED SAFETY FEATURES : This power cord is UL Listed, meeting rigorous industry standards for safety. The built-in features ensure protection against electrical hazards. Invest in peace of mind with a power cord designed with your safety as a top priority.

Full Specifications

BrandIron Box
ColorGreen
Gauge14.0
Voltage125 Volts
Wattage1875 watts
Amperage15 Amps
Plug TypeType B
UL ListedYes
Unit Count1.0 Count
Item Length12 Inches
Plug FormatType B
Model NumberIBX-2822
CompatibilityPC
Input Current15 Amps
Mfr Part NumberIBX-2822
Connector GenderMale-to-Female
Number of Outlets1
Case Material TypePolycarbonate
Number Of Conductors3
Power Cord Prong Count3
Full listing titleIronBox Electric - Heavy-Duty 5-15P to C13 Power Cord - 3 Prong 15A 125V 14/3 SJT PC Cable - Cord for Computer, Monitor, Subwoofer, Amplifier - Cable for Power Supply - (Green 1 Foot)

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IronBox Electric - Heavy-Duty 5-15P to C13 Power Cord - 3 Prong 15A 125V 14/3 SJT PC Cable - Cord for Computer, Monitor, Subwoofer, Amplifier - Cable for Power Supply - (Green 1 Foot) 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.

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