---
product_id: 648177439
title: "M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules"
brand: "io crest"
price: "A$54"
currency: AUD
in_stock: true
reviews_count: 10
category: "Io Crest"
url: https://www.desertcart.com.au/products/648177439-m-2-m-key-pci-e-3-0-interface-single
store_origin: AU
region: Australia
---

# 2.5G Lite & 5G Lite speeds Supports IEEE 802.1Q VLAN tagging Embedded OTP memory replaces EEPROM M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules

**Brand:** io crest
**Price:** A$54
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your network game with IO CREST’s lightning-fast M.2 Ethernet module!

## Quick Answers

- **What is this?** M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules by io crest
- **How much does it cost?** A$54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/648177439-m-2-m-key-pci-e-3-0-interface-single)

## Best For

- io crest enthusiasts

## Why This Product

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

## Key Features

- • **Smart Embedded Memory:** OTP memory integration eliminates the need for external EEPROM, ensuring reliability and streamlined design.
- • **Compact M.2 Form Factor:** Perfect for micro, mini, and thin computers, delivering high-speed Ethernet without sacrificing space.
- • **Advanced Network Prioritization:** Supports IEEE 802.1P Layer 2 Priority Encoding and VLAN tagging for optimized traffic management.
- • **Blazing 2.5G Lite & 5G Lite Speeds:** Experience ultra-fast data transfer up to 2.5Gbps with backward compatibility to 1Gbps and 500Mbps modes.
- • **Seamless Compatibility & Auto-Correction:** Auto-detects crossover cables and corrects polarity, skew, and pair swaps for hassle-free setup.

## Overview

The IO CREST M.2 M-Key PCI-e 3.0 Ethernet module delivers multi-gigabit speeds up to 2.5G Lite with full duplex flow control and jumbo frame support. Designed for compact systems, it features embedded OTP memory, VLAN tagging, and auto-correction technologies to ensure reliable, high-performance network connectivity. Ideal for professionals seeking a sleek, powerful upgrade to their internal networking capabilities.

## Description

The M.2 Gigabit Ethernet NIC allows the expansion card to be internally mounted in the smaller computing system and provides a secure fiber network connection to the device. It allows users the benefits of increased bandwidth, distance and security provided through fiber-based transmission in their small footprint networking device. M.2 Ethernet Gigabit NICs provide the ideal gigabit connection solution for new micro, mini and thin computers.

Review: Gets HOT, but pulls data at 10GbE. Requires Thunderbolt, not just USB 4! - Have not used it for extended periods of time, but seems to work correctly when combined with a USB4 or Thunderbolt4 port. It does get HOT, so don't put anything on top of it. Windows 11 driver worked just fine out of the box, but I did tweak some settings. I do this on all my Ethernet adapters. If your USB4 port is not also Thunderbolt, this device will not show up as a network adapter. It uses the Aquantia chip. It will show up as a USB device with no function.
Review: Is revision 03, but be wary of Linux/BSD use - Edit: as of XigmaNAS 13.1.0.5.9725 this adapter is now recognized and works as-expected! Thanks to ms49434 and zoon01 for applying a kernel patch to accept the PHY that is present. Original review follows. The adapter arrived in a small, cardboard box. The heatsink is attached securely. A hardware check indicates that the chip is revision 03. Under Windows 10/11, the adapter is usable with no additional effort or configuration on the user's side. Under Linux/FreeBSD, the adapter may or may not work depending on the version of the driver used to attempt init. Under FreeBSD specifically, support for the I225 was added in 13.1 via 𝚒𝚐𝚌, however the driver performs an unnecessary PHY vendor ID check, which may fail if the adapter reports an ID that isn't listed in an internal table. The fix (recommended by Intel themselves) is to no longer perform this check and instead assume a PHY for all I225 adapters. This fix is available in FreeBSD 13.2 and/or 14, and would need to be backported if using anything earlier. Examples; TrueNAS Scale 22.12.0 supports this adapter, while XigmaNAS 13.1.0.5.9687 (latest as of this review) includes 𝚒𝚐𝚌, but fails to init with the adapter I received.

## Features

- Supports 5G Lite (2.5G data rate) mode, 2.5G Lite (1G data rate) and GIGA Lite (500M data rate) mode
- Supports IEEE 802.1P Layer 2 Priority Encoding. Supports IEEE 802.1Q VLAN tagging
- Embedded OTP memory can replace the external EEPROM. Serial EEPROM
- Supports Full Duplex flow control (IEEE 802.3x). Supports jumbo frame to 9K bytes. Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
- Supports pair swap/polarity/skew correction. Crossover Detection & Auto-Correction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7Z6TBCS |
| Best Sellers Rank | #58 in Internal Computer Networking Cards |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,088) |
| Date First Available | June 25, 2024 |
| Item Weight | 2.71 ounces |
| Item model number | SY-PEX24093 |
| Manufacturer | IO CREST |
| Package Dimensions | 5.39 x 3.9 x 0.98 inches; 2.72 ounces |
| Release date | June 24, 2024 |
| Type of item | Electronics |

## Product Details

- **Brand:** IO CREST
- **Hardware Interface:** PCI Express x8
- **Compatible Devices:** Desktop
- **Data Link Protocol:** Gigabit Ethernet, IEEE 802.11ac
- **Data Transfer Rate:** 5E+3 Megabits Per Second
- **Item Weight:** 0.08 Kilograms
- **UPC:** 850039353314
- **Manufacturer:** IO CREST

## Images

![M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules - Image 1](https://m.media-amazon.com/images/I/31hMIyAh71L.jpg)
![M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules - Image 2](https://m.media-amazon.com/images/I/31pSeCyACYL.jpg)
![M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules - Image 3](https://m.media-amazon.com/images/I/41FleMvPFrL.jpg)
![M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules - Image 4](https://m.media-amazon.com/images/I/41PnFnEhATL.jpg)
![M.2 M-Key PCI-e 3.0 Interface Single Port 5.0 Gigabit Ethernet Modules - Image 5](https://m.media-amazon.com/images/I/41grTPG4SyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gets HOT, but pulls data at 10GbE. Requires Thunderbolt, not just USB 4!
*by T***Y on June 22, 2025*

Have not used it for extended periods of time, but seems to work correctly when combined with a USB4 or Thunderbolt4 port. It does get HOT, so don't put anything on top of it. Windows 11 driver worked just fine out of the box, but I did tweak some settings. I do this on all my Ethernet adapters. If your USB4 port is not also Thunderbolt, this device will not show up as a network adapter. It uses the Aquantia chip. It will show up as a USB device with no function.

### ⭐⭐⭐⭐⭐ Is revision 03, but be wary of Linux/BSD use
*by E***Y on February 25, 2023*

Edit: as of XigmaNAS 13.1.0.5.9725 this adapter is now recognized and works as-expected! Thanks to ms49434 and zoon01 for applying a kernel patch to accept the PHY that is present. Original review follows. The adapter arrived in a small, cardboard box. The heatsink is attached securely. A hardware check indicates that the chip is revision 03. Under Windows 10/11, the adapter is usable with no additional effort or configuration on the user's side. Under Linux/FreeBSD, the adapter may or may not work depending on the version of the driver used to attempt init. Under FreeBSD specifically, support for the I225 was added in 13.1 via 𝚒𝚐𝚌, however the driver performs an unnecessary PHY vendor ID check, which may fail if the adapter reports an ID that isn't listed in an internal table. The fix (recommended by Intel themselves) is to no longer perform this check and instead assume a PHY for all I225 adapters. This fix is available in FreeBSD 13.2 and/or 14, and would need to be backported if using anything earlier. Examples; TrueNAS Scale 22.12.0 supports this adapter, while XigmaNAS 13.1.0.5.9687 (latest as of this review) includes 𝚒𝚐𝚌, but fails to init with the adapter I received.

### ⭐ Linux/Fast/Stable
*by D***N on July 28, 2025*

Linux plug and play. Works great on 6x kernels. 600MB/s to and from my TruNAS machine running four Hitachi 10TB platter drives in zraid. Performance is steady and stable. EDIT Nov.25 Updated to 1 star. Less if I could. I've had two of these burn out this year and had to return them. Still recognized as present but fail to connect or get an IP. Real pain too because I have to remove my 4090 bracket to remove the card. Truly happy this works because it's the only x1 card I could find. Most of my board is blocked off by my RTX4090 and brace. Only other exposed slot is x8 but it has a card with 4x m.2 nvme drives on it. EDIT 8/16/2025 The card lasted less than three weeks and died. Does not recognize that a cable is even plugged in. I bought two and the second is working in place of the failed nic. We will see how long that lasts.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-11*