---
product_id: 522498919
title: "Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086"
brand: "io crest"
price: "€ 168.13"
currency: EUR
in_stock: true
reviews_count: 10
category: "Io Crest"
url: https://www.desertcart.fi/products/522498919-quad-2-5-gigabit-ethernet-pci-e-network-expansion-card
store_origin: FI
region: Finland
---

# 4x 2.5Gbps ports Fits PCIe x4/x8/x16 slots Includes low-profile bracket Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086

**Brand:** io crest
**Price:** € 168.13
**Availability:** ✅ In Stock

## Summary

> 🚀 Quad-Port 2.5GbE Powerhouse — Upgrade Your Network, Upgrade Your Game!

## Quick Answers

- **What is this?** Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086 by io crest
- **How much does it cost?** € 168.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/522498919-quad-2-5-gigabit-ethernet-pci-e-network-expansion-card)

## 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

- • **Low-Profile Bracket Included:** Perfect for compact HTPCs and small form factor builds without compromise.
- • **Universal PCIe Compatibility:** Seamlessly fits into any PCIe x4, x8, or x16 slot for ultimate flexibility.
- • **Enterprise-Grade VLAN Tagging:** Supports 802.1Q VLAN for advanced network segmentation and security.
- • **Quad 2.5 Gigabit Ethernet Ports:** Multiply your network speed with four blazing-fast 2.5Gbps RJ45 connections.
- • **Plug & Play with Broad OS Support:** Effortless setup on Windows and Linux systems—get connected instantly.

## Overview

The IO CREST SY-PEX24086 is a high-performance PCIe network card featuring four 2.5 Gigabit Ethernet ports, designed to supercharge your PC or server’s connectivity. Compatible with PCIe x4, x8, and x16 slots, it includes both standard and low-profile brackets for versatile installation. Supporting advanced VLAN tagging and broad OS compatibility, this card is ideal for professionals demanding faster, reliable wired networking in compact or full-sized systems.

## Description

Provides four 2. 5 Gigabit Ethernet connectivity to Mac Pro towers and Windows PCs. Simple way to add or expand 2. 5 Gigabit Ethernet connectivity to any compatible computer. It is suitable for multiple market segments and emerging applications, such as desktop, mobile, workstation, server, communications platforms, and embedded applications.

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

- With this PCIe Card, you can add a 10/100/1000/25000 Mbps Ethernet port to any PC through a PCIe slot.Fits any PCI Express x4, x8 or x16 socket; Additional 8cm Low-profile bracket provides the option for installation in small size HTPC case.
- This PCI-based 10/100/1000/25000 2.5 Gigabit Ethernet Network Adapter Card provides a simple connection to a 2.5 Gigabit Ethernet network, and is fully compatible with 802.1Q Virtual LAN (VLAN) Tag. and Ethernet card which is compliant to IEEE802.3, IEEE802.3u and IEEE802.3ab.
- The high quality PCIe 2.5 Gigabit NIC with 12cm profile bracket and Additional 8cm Profile Bracket that makes it easy to install the card in a small form factor/low profile computer case/server.
- 2.5 Gigabit network card Compatible with a broad range of operating systems, including Windows 10, 8/8.1, 98SE, ME, 2000, XP, XP-64bit, Vista, Vista-64bit, 7, 7-64bit, Linux
- What You Get: IO Crest Quad 2.5 Gigabit PCI-E Network Card x1, Driver Disk x1, 8cm Low-profile Bracket x1. Backed by Syba 3 Year Hassle-free Warranty and Lifetime Customer Service. Important Note: Only work with PCI-E slot, Not for PCI Slot.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BLX9SC9D |
| Best Sellers Rank | #46 in Internal Computer Networking Cards |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,088) |
| Date First Available | November 9, 2022 |
| Item Weight | 7 ounces |
| Item model number | SY-PEX24086 |
| Manufacturer | IO CREST |
| Product Dimensions | 4.2 x 0.5 x 5.5 inches; 7.05 ounces |
| Release date | November 9, 2022 |
| Type of item | Electronics |

## Product Details

- **Brand:** IO CREST
- **Hardware Interface:** Ethernet, PCI
- **Compatible Devices:** Desktop
- **Data Link Protocol:** Ethernet, Gigabit Ethernet
- **Data Transfer Rate:** 2.5E+9 Bits Per Second
- **UPC:** 850039353161
- **Manufacturer:** IO CREST

## Images

![Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086 - Image 1](https://m.media-amazon.com/images/I/31WgJNDWFwL.jpg)
![Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086 - Image 2](https://m.media-amazon.com/images/I/41LEFIFkWzL.jpg)
![Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086 - Image 3](https://m.media-amazon.com/images/I/41U6YI7CZbL.jpg)
![Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086 - Image 4](https://m.media-amazon.com/images/I/41dD3+XMNRL.jpg)
![Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086 - Image 5](https://m.media-amazon.com/images/I/51lKwFPL74L.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.

## Frequently Bought Together

- Quad 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SY-PEX24086
- TRENDnet 6-Port 10G Switch, 4 x 2.5G RJ-45 Base-T Ports, 2 x 10G RJ-45 Ports, 60Gbps Switching Capacity, Wall Mountable, 10 Gigabit Network Connections, Lifetime Protection, Black, TEG-S762
- TRENDnet 5-Port 10G Switch, TEG-S750, 5 x 10G RJ-45 Ports, 100Gbps Switching Capacity, Supports 2.5G and 5G-Base-T Connections, Ethernet Splitter, NDAA & TAA Compliant, Lifetime Protection, Black

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-26*