---
product_id: 75935052
title: "Dualcomm10/100/1000Base-T Gigabit Ethernet Network TAP [ETAP-2003]"
brand: "dualcomm"
price: "$474.74"
currency: USD
in_stock: true
reviews_count: 13
category: "Dualcomm"
url: https://www.desertcart.us/products/75935052-dualcomm10-100-1000base-t-gigabit-ethernet-network-tap-etap-2003
store_origin: US
region: United States of America
---

# PoE compatible for seamless power & data Supports 200m cable at full 1Gbps throughput USB-powered with inrush current protection Dualcomm10/100/1000Base-T Gigabit Ethernet Network TAP [ETAP-2003]

**Brand:** dualcomm
**Price:** $474.74
**Availability:** ✅ In Stock

## Summary

> 🚀 Tap into your network’s pulse with the tiniest titan of traffic monitoring!

## Quick Answers

- **What is this?** Dualcomm10/100/1000Base-T Gigabit Ethernet Network TAP [ETAP-2003] by dualcomm
- **How much does it cost?** $474.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/75935052-dualcomm10-100-1000base-t-gigabit-ethernet-network-tap-etap-2003)

## Best For

- dualcomm enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Probably the smallest portable GbE Network Tap on the market—discreet yet mighty.
- • **Rugged Metal Build:** Durable metal casing designed for on-the-go professionals who demand reliability in the field.
- • **Plug & Play USB Power:** Draw power safely from any USB port with built-in surge protection—no extra adapters needed.
- • **Uninterrupted PoE Monitoring:** Compatible with Power-over-Ethernet, so you never miss a beat on powered network links.
- • **Zero Packet Loss at Gigabit Speed:** Tested to handle 200m cable runs at full 1Gbps throughput with flawless data capture.

## Overview

The Dualcomm ETAP-2003 is a high-performance, ultra-compact Gigabit Ethernet Network Tap designed for professional network monitoring and troubleshooting. It supports 10/100/1000Base-T links, can be powered directly via USB with built-in surge protection, and is fully compatible with Power-over-Ethernet (PoE). Tested to handle up to 200 meters of cable at full 1Gbps throughput without packet loss, it offers reliable, portable, and seamless network traffic capture in a rugged metal enclosure.

## Description

Dualcomm ETAP-2003 i a Network Tap for ue with a 10/100/1000Bae-T Ethernet link. ETAP-2003 i olidly contructed with a metal cae and i probably the mallet in ize of all the GbE Network Tap available on the market. ETAP-2003 can be powered from a computer' UB port with built-in inruh current limiting circuit to prevent the computer from poible damage or diturbance by an intantaneou current urge when ETAP-2003 i being powered from a UB port of the computer. ETAP-2003 i compatible with \Power over Ethernet\ (PoE) o that deployment of an ETAP-2003 Network Tap would not block the end-to-end flow of PoE inline power which i a very ueful feature for monitoring or capturing data traffic of a PoE Ethernet link. A network monitoring and troublehooting intrument ETAP-2003 i highly reliable with conitence performance. It has been teted with the maximum in-line cable length of 200 m at a full 1Gbp data throughput with no ingle packet lo. All thee make ETAP-2003 an ideal portable network traffic niffing device for monitoring and troublehooting data traffic in a 10/100/1000Bae-T Ethernet network.

Review: Works great with Wire Shark - Works great with Wire Shark sniffer software. Best price too.
Review: This should be work related, right? - ... I think the last time I was this excited about a network device I was 13 years old and my mom got me a 2400 baud modem for my birthday. The unit works exactly as described, it mirrors port 1 to port 5, leaving the remaining 3 ports as regular switched ethernet ports (though port 2 is also the PoE passthrough, which I haven't had the chance to test to that extent). It couldn't be more straight forward than it is. The USB power is fairly cool, I can imagine it being very practical when you're near a server rack trying to sort stuff out. Right now I'm actually using an iphone wall socket to power the unit since my router and switch is rather far away from my workstations. Works just fine. But I see a soldering iron in my future if/when that cable breaks (still beats scavenging ebay for a compatible power supply, waiting for it to be delivered, etc). The manual is...well...a single page that describes the device. There is no setup instructions or common scenarios, nothing. And that's ok, this isn't for the uninitiated anyway. If you can't figure out how to connect a switch tap you'll never get wireshark display filters to work for you anyway... 5 star for price, features, ease of use and I could ding them for the manual, but I won't. It's fine the way it is.

## Features

- Network Tap for use with 10/100/1000Base-T Ethernet link
- Reliable and high performance. Tested with maximum in-line cable length (200m) at full 1Gbps data throughput with no single packet loss
- Capable of being powered from a computer's USB port with built-in inrush current limiting circuit to prevent the computer from possible damages or disturbances by instantaneous current surge
- Compatible with Power-over-Ethernet (PoE)
- Probably the smallest portable GbE Network Tap available on the market

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004EWVFAY |
| Best Sellers Rank | #246 in Computer Networking Switches |
| Customer Reviews | 4.4 4.4 out of 5 stars (111) |
| Date First Available | June 3, 2021 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12 ounces |
| Item model number | ETAP-2003_SML |
| Language | Dutch |
| Manufacturer | Dualcomm |
| Product Dimensions | 3.74 x 2.83 x 1.06 inches |

## Product Details

- **Brand:** Dualcomm
- **Color:** Green, Silver, Gold
- **Compatible Devices:** Any device that supports a 10/100/1000Base-T Ethernet link
- **Compatible Operating System Family:** Linux, Windows
- **Data Link Protocol:** IEEE 802.3
- **Data Transfer Rate:** 1 Gigabits Per Second
- **Hardware Interface:** Ethernet
- **Item Weight:** 12 Ounces
- **Product Dimensions:** 3.74"L x 2.83"W x 1.06"H
- **UPC:** 804879244066

## Images

![Dualcomm10/100/1000Base-T Gigabit Ethernet Network TAP [ETAP-2003] - Image 1](https://m.media-amazon.com/images/I/71PCWZwmvyL.jpg)

## Questions & Answers

**Q: Why this so much while a switch with port mirroring (e.g. tl-sg105e, if only utilizing 3 ports) only cost $20? with due repect to the manufacturer.**
A: A switch with port mirroring isn't a tap. The manufacturer of this tap did the work to design and implement a device which would NOT change the characteristics or timing of the A/B traffic flow. The design is not a  "standard cookie-cutter" implementation of a switch-chip's reference design. On the other hand, 5-port switches are as they say "a dime a dozen" and port mirroring and simple management protocols are now built into the silicon as standard features. 
Another reason for the price difference is the application. A tap is used in specialized circumstances, such as diagnostics or forensics, and that perhaps allows a higher price to be demanded, much like selling rope in a yachting goods store. The buying audience can bear a higher price.
My explanation is just a conjecture. You have to decide if the special tap features are worth the money.

**Q: Will it work with a cable modem?**
A: It will work with any Ethernet cable. Standard stuff. I recommend CAT6 or better. It will not work with a coax cable like RG6. It is not managed and provides no services like DHCP. It is a simple layer 2 switch with a hardware mirrored port (1 -> 5). It is permanently configured this way. If you want to capture packets on the wire going traversing a gateway, then this is great for that. Otherwise, it will act just like a regular un-managed switch.

**Q: If this device fails will it fail open or block all traffic?**
A: With no power, it will not pass traffic.

**Q: Thinking about by. Anyone who purchased notices any network degradation in their environment where they have implemented their Tap?**
A: We have not had any noticeable network degradation. We positioned out tap on our outgoing broadband connection (70/40 Mbps down/up) and have not had any deleterious effects.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great with Wire Shark
*by R***P on September 26, 2025*

Works great with Wire Shark sniffer software. Best price too.

### ⭐⭐⭐⭐⭐ This should be work related, right?
*by N***A on October 18, 2012*

... I think the last time I was this excited about a network device I was 13 years old and my mom got me a 2400 baud modem for my birthday. The unit works exactly as described, it mirrors port 1 to port 5, leaving the remaining 3 ports as regular switched ethernet ports (though port 2 is also the PoE passthrough, which I haven't had the chance to test to that extent). It couldn't be more straight forward than it is. The USB power is fairly cool, I can imagine it being very practical when you're near a server rack trying to sort stuff out. Right now I'm actually using an iphone wall socket to power the unit since my router and switch is rather far away from my workstations. Works just fine. But I see a soldering iron in my future if/when that cable breaks (still beats scavenging ebay for a compatible power supply, waiting for it to be delivered, etc). The manual is...well...a single page that describes the device. There is no setup instructions or common scenarios, nothing. And that's ok, this isn't for the uninitiated anyway. If you can't figure out how to connect a switch tap you'll never get wireshark display filters to work for you anyway... 5 star for price, features, ease of use and I could ding them for the manual, but I won't. It's fine the way it is.

### ⭐⭐⭐⭐ Good for monitoring
*by J***H on February 1, 2026*

This is great for using WireShark to monitor Ethernet traffic to a device. You can only monitor though, not inject data in the stream. Works great for my purposes.

## Frequently Bought Together

- Dualcomm ETAP-2003 10/100/1000Base-T Gigabit Ethernet Network TAP
- LANProbe 10/100/1000 Gigabit Ethernet/USB Bypass Network Tap

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*