Search  for anything...

KnuKonceptz Kolossus Flex Kable OFC 0 Gauge Power Wire Copper Cable (Silver, 30 Feet)

  • Based on 0 reviews
Condition: New
Checking for the best price...
$210.47 Why this price?

Buy Now, Pay Later


As low as $35.08 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by KnuKonceptz

Arrives Saturday, Apr 18
Order within 20 hours and 24 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 30 Feet


Color: Silver


Features

  • 5145 Strands of Tinned Oxygen Free Copper (OFC) Tin provides a protective barrier from oxygen to the bare copper underneath. By adding a thin layer of tin to each strand, the cable is no longer able to oxidize making the Kolossus Kable more durable than bare copper cables.
  • Exceeds American Wire Gauge (AWG) Standards - The gauge of stranded wire is determined by the total area of the conductor. All KnuKonceptz products meet or exceed AWG specifications.
  • Ultra Flex Matte Soft Touch PVC - Our cable is ultra flexible making it easy to navigate tight spaces and maintains exceptional resistance to abrasion, oil, and extreme temperatures.
  • Kolossus Battery Cable applications include Battery Relocation, Big 3, Car Audio, General Automotive Wire, Truck, Solar, and Marine Power Cable.
  • Available in a variety of Pre-Cut Lengths

Brand: KnuKonceptz


Connector Type: Bare


Cable Type: Battery


Compatible Devices: Amplifier, Battery, Auto and Marine


Special Feature: Tinned OFC, Ultra Flex PVC


Connector Type: Bare


Cable Type: Battery


Compatible Devices: Amplifier, Battery, Auto and Marine


Other Special Features of the Product: Tinned OFC, Ultra Flex PVC


Maximum Current: 375 Amps


Maximum Voltage: 24 Volts (DC)


Recommended Uses For Product: Automotive


Specification Met: Awg


Indoor Outdoor Usage: Outdoor


Color: Silver


Outer Material: Polyvinyl Chloride (PVC)


Brand Name: KnuKonceptz


Model: 21


Manufacturer: KnuKonceptz


Global Trade Identification Number: 21


Included Components: 1


Unit Count: 1.0 Count


Item Weight: 12.8 Pounds


Number of Items: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Better than I had expected for the price range. It is a pleasure to work with this wire
Size: 5 Feet Color: Red
My first experience using knukonceptz wire and am really impressed. Soft and flexible jacket makes working my way through the car very easy compared to older wire I was used to. Trying to budget I was very impressed by what I got for the money.
Reviewed in the United States on November 2, 2025 by SUSAN HOLVE

  • Nice wire super flexible OFC with high strand count
Size: 25 Feet Color: Blue
I have used many different brands and this is a very good one. Super flexible wire that is thick and good quality. The jacket is thick but not overly thick like Sky high or others I have used but the wire inside is just as big. So even though some other high end brands have a little thicker jacketing. That makes the wire stiffer so I like this stuff because it's easier to bend. The thickness and the amount of copper is top notch. ... show more
Reviewed in the United States on July 21, 2023 by BigL

  • Great quality wire!!
Size: 5 Feet Color: Black
This is by far, the best quality wire I have ever owned. Extremely fine strands and very heavy. The silicone insulation is top quality, and the price for this quality of wire is unbeatable, even after having to pay the shipping. My system consists of 1/0 gauge supply wire to dist. block and big 4 upgrade, 4 gauge subwoofer amp supply and 8 gauge supply to door speaker amp, 12 gauge wire to door speakers, 14 gauge to door tweeters, and 8 gauge to subs. All wire in my SUV sound system build is Knukoncepts excluding the RCA's, and that's only because they didn't have the lengths I needed for my configuration. I am ordering the power and "big 4 upgrade" wires for my work truck today! You will not be disappointed with this purchase!! ... show more
Reviewed in the United States on September 15, 2023 by Rod Runion

  • Cable
Size: 5 Feet Color: Red
This is the second time i ordered i have no problem with this cable good quality.
Reviewed in the United States on December 4, 2025 by Yancy Violanda

  • 100% OFC COPPER
Size: 5 Feet Color: Black
Very nice heavy duty well built 100% OFC Copper wire. Do not settle for less. This particular brand cable has been installed in my daily driver for over 6 years. I just went threw an amp upgrade. The cable is still flexible just like the day I bought it. The setup goes from 0 gauge to a splitter where it has 4 outputs of I think 4 gauge. All cables are still like new with no cracking or deteriation. The cable does look like it has a few spots of mold but that's my fault. ... show more
Reviewed in the United States on February 18, 2025 by Daniel P.

  • Absolutely worth the money
Size: 30 Feet Color: Blue
Great product this is my second time getting some of this wire. Way better than that sky high stuff they trying to sell. Very dense material makes for a great product. My voltage numbers instantly went up when I took all of my old wire out and put this new wire in. I will Continue to purchase this kind of wire for my application needs. ... show more
Reviewed in the United States on August 14, 2024 by LL Boggie

  • Loose insulation but good wire
Size: 50 Feet Color: Blue
Why did you pick this product vs others?: I ordered 50ft of the 1/0 blue OFC and it was true 1/0 and just a little longer than 50ft which was great …. Now I would have given this product 5 stars but while I was wiring up my suburban the copper strands inside kept slipping in the rubber insulation. It would go either too far in or too far out …. It’s too loose inside the insulation! Feels like I was getting scammed on the amount of strands inside …. ... show more
Reviewed in the United States on July 6, 2025 by Michael Z.

  • Price and quality
Size: 5 Feet Color: Red
Good good quality and best price
Reviewed in the United States on April 4, 2026 by Helit Esquivel

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...