Iron Box

IronBox Electric

Name: 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
Brand: Iron Box
SKU: B0789PNMV9

Bottom line: The IronBox Electric: 14/3 SJT build: three 14 AWG conductors, heavier than typical bundled cords; main trade-off: fixed 6 ft length, too long for tidy rack runs and too short for far outlets.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-18

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. About the author →

Pros & Cons

Pros

✓ 14/3 SJT build: three 14 AWG conductors, heavier than typical bundled cords
✓ Rated 15A at 125V, enough headroom for high-wattage desktop PSUs
✓ UL Listed for safety compliance
✓ Standard 5-15P to C13 fits PCs, monitors, amps, subwoofers and projectors
✓ Orange jacket is easy to trace in a cluttered cable bundle

Cons

✗ Fixed 6 ft length, too long for tidy rack runs and too short for far outlets
✗ Thick 14 AWG jacket is stiffer to route in tight spaces
✗ 125V 5-15P plug is for North American outlets only
✗ C13 end will not fit C15 or C19-only inlets on some servers and appliances

Manufacturer description

The IronBox Electric heavy-duty 5-15P to C13 power cord connects a standard North American 3-prong wall outlet to the IEC C14 inlet found on most desktop power supplies, monitors, amplifiers, subwoofers, projectors and TVs. It is rated at 15A and 125V, and the 14/3 SJT jacket uses three 14-gauge conductors. That is a heavier gauge than many thin replacement cords bundled with electronics. At 6 feet long, the cord reaches from a floor outlet or power strip to a tower under the desk or to an amplifier on a rack shelf. The bright orange jacket is easy to trace behind a crowded bench, so you can…

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 work with my desktop PC power supply?

Yes, if your power supply has a standard IEC C14 inlet, which most desktop ATX and many vintage AT units use. The C13 end plugs into it and the 5-15P end goes into a standard 3-prong US outlet.

What wire gauge and rating does this power cord use?

It is a 14/3 SJT cable, meaning three 14-gauge conductors in a hard-service thermoplastic jacket. It is rated for 15A at 125V.

How long is the IronBox power cord?

This version is 6 feet long and has an orange jacket.

Can I use it for a subwoofer or amplifier?

Yes. The listing names subwoofers and amplifiers as compatible devices, along with computers, monitors, TVs, projectors and speakers, as long as the device has a C14 inlet.

Is this power cord UL Listed, and does it come with a warranty?

The cord is UL Listed. Warranty terms are not stated in the product details, so check the current Amazon listing or contact IronBox Electric for coverage.

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

Brand	Iron Box
Color	Orange
Gauge	14.0
Voltage	125 Volts
Plug Type	Type B
UL Listed	Yes
Item Length	72 Inches
Plug Format	Type B
Model Number	IBX-2822
Compatibility	PC
Input Current	15 Amps
Mfr Part Number	IBX-2822
Connector Gender	Male-to-Female
Number of Outlets	1
Case Material Type	Polycarbonate
Number Of Conductors	3
Power Cord Prong Count	3
Full listing title	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 - (Orange 6 Foot)

Ready to buy?

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 - (Orange 6 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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