---
product_id: 26573493
title: "PL7667-MST CEI Master Adapter"
brand: "cool energy island"
price: "2201 kr"
currency: DKK
in_stock: false
url: https://www.desertcart.dk/products/26573493-pl7667-mst-cei-master-adapter
store_origin: DK
region: Denmark
---

# 500 Mbps high-speed data Real-time energy monitoring Encrypted secure network PL7667-MST CEI Master Adapter

**Brand:** cool energy island
**Price:** 2201 kr
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power your smart home with the ultimate energy gateway!

## Quick Answers

- **What is this?** PL7667-MST CEI Master Adapter by cool energy island
- **How much does it cost?** 2201 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/26573493-pl7667-mst-cei-master-adapter)

## Best For

- cool energy island enthusiasts

## Why This Product

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

## Key Features

- • **Lifetime Reliability:** Built to last with a lifetime warranty—your energy management, future-proofed.
- • **Centralized Energy Command:** Master adapter collects and manages all energy data seamlessly.
- • **Cloud-Controlled Automation:** Remotely control appliances via cloud-based app for smart energy savings.
- • **Plug & Play Network Upgrade:** Transforms existing wiring into a lightning-fast, secure network instantly.
- • **Robust Multi-Device Support:** Supports up to 63 connected adapters for expansive home/business coverage.

## Overview

The PL7667-MST CEI Master Adapter is a cutting-edge 500 Mbps Ethernet and AC power energy management device that transforms your home wiring into a secure, high-speed network. Serving as the central hub, it collects energy data, supports up to 63 connected adapters, and enables cloud-based control of appliances. Designed for seamless integration and lifetime reliability, it’s essential for any smart energy system.

## Description

Product Description 500 Mbps AC power energy measurement and management /Ethernet master adapter, with a pass-through plug and Ethernet adapter, for network and broadband services serves as the central energy consumption information collection point for the entire system. It is the only adapter in the industry that has an Energy Management and Ethernet Communications capability in a single adapter. By attaching an Ethernet cable to this adapter from the home's router or modem, the home's wiring is instantaneously transformed into a high-speed, encrypted network that can be used to communicate video, audio and/or data. The unit sends data to the online software and signals auxiliary appliances to turn on/off as defined in the cloud-based application. This adapter is designed to support up to 63 other adapters (probably less - depending on home / business wiring, data volumes, etc.). YOUR SYSTEM MUST HAVE AT LEAST ONE MASTER ADAPTER. From the Manufacturer 500 Mbps AC power energy measurement and management /Ethernet master adapter, with a pass-through plug and Ethernet adapter, for network and broadband services serves as the central energy consumption information collection point for the entire system. It is the only adapter in the industry that has an Energy Management and Ethernet Communications capability in a single adapter. By attaching an Ethernet cable to this adapter from the home's router or modem, the home's wiring is instantaneously transformed into a high-speed, encrypted network that can be used to communicate video, audio and/or data. The unit sends data to the online software and signals auxiliary appliances to turn on/off as defined in the cloud-based application. This adapter is designed to support up to 63 other adapters (probably less - depending on home / business wiring, data volumes, etc.). YOUR SYSTEM MUST HAVE AT LEAST ONE MASTER ADAPTER.

## Features

- Adapter that serves as the information collection point and gateway for the system
- Transforms existing wiring into a high-speed, secure network as soon as it is plugged in
- Working Energy Monitoring device
- Communicates with other adapters including Wi-Fi extender
- SYSTEM MUST HAVE AT LEAST ONE MASTER ADAPTER

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IL8AYNQ |
| Batteries Required? | No |
| Date First Available | February 20, 2014 |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item model number | PL7667-MST |
| Manufacturer | Cool Energy Island |
| Part Number | PL7667-MST |
| Product Dimensions | 5.35 x 2.65 x 1.66 inches |
| Warranty Description | Lifetime |

## Images

![PL7667-MST CEI Master Adapter - Image 1](https://m.media-amazon.com/images/I/41HfOZAb9tL.jpg)
![PL7667-MST CEI Master Adapter - Image 2](https://m.media-amazon.com/images/I/81jA0jo-OsL.jpg)

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**Shop now:** [https://www.desertcart.dk/products/26573493-pl7667-mst-cei-master-adapter](https://www.desertcart.dk/products/26573493-pl7667-mst-cei-master-adapter)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-28*