---
product_id: 17843420
title: "AT&T (Formerly DIRECTV) 21 Volt Power Inserter for All DIRECTV SWM LNBs (PI21)"
brand: "directv"
price: "157 kr"
currency: DKK
in_stock: true
reviews_count: 12
category: "Directv"
url: https://www.desertcart.dk/products/17843420-at-and-t-formerly-directv-21-volt-power-inserter-all
store_origin: DK
region: Denmark
---

# 100-120 V AC input voltage 2000 kHz - 2150 MHz frequency range F-type port interface AT&T (Formerly DIRECTV) 21 Volt Power Inserter for All DIRECTV SWM LNBs (PI21)

**Brand:** directv
**Price:** 157 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your DIRECTV experience with flawless signal strength!

## Quick Answers

- **What is this?** AT&T (Formerly DIRECTV) 21 Volt Power Inserter for All DIRECTV SWM LNBs (PI21) by directv
- **How much does it cost?** 157 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/17843420-at-and-t-formerly-directv-21-volt-power-inserter-all)

## Best For

- directv enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Power:** Supports standard 100-120 V AC input for easy installation
- • **Reliable Performance:** Trusted by thousands with a 4.6-star rating and zero reset hassles
- • **Seamless Signal Boost:** Minimizes signal loss to just 2 dB for crystal-clear reception
- • **Universal F-Type Ports:** Ensures hassle-free connectivity with all DIRECTV Slim Line Dish Antennas
- • **Wide Frequency Compatibility:** Optimized for 2000 kHz to 2150 MHz range to cover all DIRECTV SWM LNBs

## Overview

The AT&T PI21 Power Inserter is a precision-engineered signal amplifier designed for all DIRECTV SWM LNBs. Operating within a 2000 kHz to 2150 MHz frequency range and featuring minimal 2 dB signal loss, it ensures superior signal integrity. Compatible with standard 100-120 V AC power and equipped with universal F-type ports, this compact 3x6x4 inch device guarantees easy installation and reliable performance, backed by a strong 4.6-star user rating.

## Description

Technical Information - Frequency Range - 2000 kHz to 2150 MHz; Signal Loss - 2 dB - Insertion; Input Voltage Range - 100 V AC to 120 V AC; Interfaces/Ports - Ports - F-type; Manufacturer - DIRECTV; Manufacturer Part Number - PI21; Manufacturer Website Address - directv; Brand Name - DIRECTV; Product Model - PI-21; Product Name - PI-21 Power Inserter; Product Type - Signal Amplifier; Miscellaneous - Compatibility - DIRECTV Slim Line Dish Antenna; Frequency Range - 2000 kHz to 2150 MHz; Signal Loss - 2 dB - Insertion; Input Voltage Range - 100 V AC to 120 V AC; Interfaces/Ports - Ports - F-type

Review: Removed the old one, put on the new one and no more problems having to reset the direct tv console! - Works great
Review: It works - Works as intended

## Features

- Technical Information - Frequency Range - 2000 kHz to 2150 MHz; Signal Loss - 2 dB - Insertion; Input Voltage Range - 100 V AC to 120 V AC; Interfaces/Ports - Ports - F-type

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005AME7Y8 |
| Best Sellers Rank | #44,557 in Automotive ( See Top 100 in Automotive ) #97 in Power Inverters |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,520) |
| Date First Available | March 20, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11.8 ounces |
| Item model number | PI21R1-03 |
| Manufacturer | DIRECTV |
| Product Dimensions | 3 x 6 x 4 inches |

## Images

![AT&T (Formerly DIRECTV) 21 Volt Power Inserter for All DIRECTV SWM LNBs (PI21) - Image 1](https://m.media-amazon.com/images/I/81ruYAshq5L.jpg)

## Questions & Answers

**Q: Will this be a suitable replacement for PI21R3-16?**
A: Yes. This is a direct replacement for all that start Pi21R such as your Pi21R3-16.

**Q: Is this channel 3 and 4**
A: Don't know what you mean. This is needed for hooking up your dish to the receiver. It has no channels on it.

**Q: Will this replace a king ii power injector part :22037 on a king quest pro sattelite?**
A: I don’t know. Probably ask the king customer service

**Q: Can this be used for hd24-500 reciever**
A: Google your reciever model and ask, I believe it can,but look on your web browser  and  make sure.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Removed the old one, put on the new one and no more problems having to reset the direct tv console!
*by S***R on December 3, 2025*

Works great

### ⭐⭐⭐⭐⭐ It works
*by P***Z on January 6, 2026*

Works as intended

### ⭐⭐⭐⭐⭐ Excellent Product
*by K***N on November 5, 2024*

I gave 5 stars because this SWM Box was easy to order, it arrived quickly, and when I got it, it was easy to hook up and it worked flawlessly.

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**Shop now:** [https://www.desertcart.dk/products/17843420-at-and-t-formerly-directv-21-volt-power-inserter-all](https://www.desertcart.dk/products/17843420-at-and-t-formerly-directv-21-volt-power-inserter-all)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-14*