---
product_id: 445047221
title: "RFC30F 30 Farad Capacitor Blue Voltage Display"
brand: "rockville"
price: "$9760"
currency: MXN
in_stock: true
url: https://www.desertcart.mx/products/445047221-rfc30f-30-farad-capacitor-blue-voltage-display
store_origin: MX
region: Mexico
---

# 30 Farad ultra-high capacity Blue illuminated voltage display Built-in distribution block RFC30F 30 Farad Capacitor Blue Voltage Display

**Brand:** rockville
**Price:** $9760
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge your sound, light up your ride!

## Quick Answers

- **What is this?** RFC30F 30 Farad Capacitor Blue Voltage Display by rockville
- **How much does it cost?** $9760 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/445047221-rfc30f-30-farad-capacitor-blue-voltage-display)

## Best For

- rockville enthusiasts

## Why This Product

- Trusted rockville brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Metal Mesh Cover:** Protect your investment with a robust black wire mesh that combines style and strength.
- • **Massive 30 Farad Capacity:** Power your system with ultra-high energy storage for peak performance.
- • **Integrated Distribution Block:** Simplify your setup with a built-in distribution block for cleaner wiring.
- • **Striking Blue Voltage Display:** Stay visually connected with a sleek, music-responsive illuminated window.
- • **Low ESR for Maximum Efficiency:** 0.015 ohm ESR ensures minimal energy loss and superior power delivery.

## Overview

The Rockville RFC30F is a 30 Farad hybrid capacitor designed for high-performance car audio systems. Featuring a low 0.015 ohm ESR for efficient power delivery, it includes a built-in distribution block and a blue illuminated voltage display that pulses with your music. Its durable metal mesh cover ensures longevity while adding a sleek aesthetic to your setup.

## Description

Have you noticed your headlights dimming to the beat when you hit those heavy bass notes on your car’s custom sound system? Cranking up the volume on your system can put inordinate amounts of stress on your vehicle’s electrical system. Most cars today cannot handle the high power demands of custom sound system components hence the need for a dependable and powerful capacitor. Enter the Rockville RFC30F Digital Hybrid Capacitor. This professional grade capacitor is built to handle even the most power hungry amplifiers delivering a surge of up to 20 volts of power when needed.  Rockville engineers have gone out of their way to design and put in your hands a high end capacitor at half the cost of our competitors similarly spec’d models. The RFC30F features a 3-digit super bright digital LED read out which displays the unit’s exact operating voltage to the decimal point. It comes equipped with heavy duty bolt down style platinum plated terminals which ensure a safe and solid connection. The built in IC Controlled circuitry alerts you if your voltage is too high (+17.5v) or too low (-10v). An automatic sleep feature helps the capacitor reserve power during lulls in volume levels, delivering it only as needed. With its sleek lines, modern styling and cool blue LED accents, the RFC30F will enhance the look of any sound system.   The reasonably priced RFC30F comes with a 90-day money back guarantee. With its high quality build and superb performance, its a definite step up and a must have for your car’s sound system.

## Features

- Rockville RFC30F 30 farad capacitor Blue voltage display + built in distribution block
- SR (equivalent Series resistance): 0.015 ohm @ 120Hz, 25°c
- 30 farad digital Hybrid capacitor with Blue illumination
- Blue illuminated window with light following played music
- Black wire mesh cover

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operating voltage | 20 Volts |
| Maximum voltage | 20 Volts |
| Mounting type | Through-Hole Mount |
| Upper temperature rating | 25 Degrees Celsius |
| Manufacturer | Audiosavings |
| UPC | 811080025179 |
| Item Weight | 2.18 Kilograms |
| Product Dimensions | 8.2 x 31.62 x 21.72 cm; 2.18 kg |
| Item model number | RFC30F |
| Color Name | Blue |
| Material Type | Metal |
| Size | 30 Farad Capacitor |

## Product Details

- **Capacitance:** 30 Farad
- **Brand:** Rockville
- **Material:** Metal
- **Shape:** Block
- **Equivalent series resistance:** 0.02 Ohm

## Images

![RFC30F 30 Farad Capacitor Blue Voltage Display - Image 1](https://m.media-amazon.com/images/I/811-UeU-1ML.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Why was this one returned? i have a 4000w rockville amp and 2 rockville 15s. will this cap hold up. i have a bigger alternator and optima batteries.**
A: Yes

**Q: Can i connect 2 capacitors in 1 amp?**
A: Yes but one capacitor should be enough

**Q: I used 1 of these with 1 amp 8000w and 2 subs of 6000w each and i have dimming problems, the capacitor may be maulfunction?**
A: Not If the volt meter on the cap isn't dipping below 13-12.6 volts , you might need a better battery . Sometimes if your battery is a little inadequate or alternator is lacking the cap will dip under it's stored power .

**Q: This capacitor will only works fine with small amps.**
A: I got a 10k watts amp and it doing good

## Frequently Bought Together

- Rockville RFC30F 30 Farad Capacitor Blue Voltage Display
- TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing
- SoundBox PK0-17, 0 Gauge Amp Kit Power Amplifier Install Wiring Cables - 7500W

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**Shop now:** [https://www.desertcart.mx/products/445047221-rfc30f-30-farad-capacitor-blue-voltage-display](https://www.desertcart.mx/products/445047221-rfc30f-30-farad-capacitor-blue-voltage-display)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-10*