---
product_id: 162706380
title: "SD-PEX24066"
brand: "io crest"
price: "B/.98"
currency: PAB
in_stock: false
reviews_count: 8
category: "Io Crest"
url: https://www.desertcart.com.pa/products/162706380-sd-pex24066
store_origin: PA
region: Panama
---

# Dual 2.5 Gbps Ethernet ports Includes low-profile 8cm bracket Universal PCIe x1 to x16 compatibility SD-PEX24066

**Brand:** io crest
**Price:** B/.98
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Double your network speed, halve your wait time!

## Quick Answers

- **What is this?** SD-PEX24066 by io crest
- **How much does it cost?** B/.98 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/162706380-sd-pex24066)

## 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

- • **Future-Proof VLAN Support:** Fully compliant with IEEE802.1Q VLAN tagging, enabling advanced network segmentation and security for modern IT infrastructures.
- • **Compact Low-Profile Design:** Includes an 8cm low-profile bracket for sleek installation in small form factor PCs and HTPCs—maximize power without bulk.
- • **Cross-Platform Compatibility:** Supports Windows, Linux, FreeBSD, and more, ensuring your network card works flawlessly in diverse professional environments.
- • **Plug & Play PCIe Versatility:** Fits seamlessly into any PCIe slot (x1 to x16), making upgrades effortless across desktops, workstations, and servers.
- • **Blazing Dual 2.5 Gigabit Speeds:** Experience ultra-fast, lag-free networking with two 2.5 Gbps Ethernet ports—perfect for bandwidth-hungry workflows.

## Overview

The Syba SD-PEX24066 is a high-performance PCIe network card that adds dual 2.5 Gigabit Ethernet ports to any compatible PC. Designed for professional-grade networking, it supports all PCIe slot sizes, includes a low-profile bracket for compact builds, and offers broad OS compatibility. Ideal for demanding environments, it ensures fast, reliable, and secure connectivity with VLAN support and hassle-free installation.

## Description

Provides two 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: Drop in and works under Linux with default drivers (Debian 11/12) - I have three of these in a Proxmox cluster of machines, and all of them have worked out of the box with no issues. Repeat iperf3 tests has them pushing full speed without complications.
Review: Works on FreeBSD if you install kernel module - I wanted it for the uplink on my cable router to match my cable modem's ability to push 2.5 Gbps (even though I only get 1.5 Gbps service). The motherboard's stock ethernet port is only 1Gbps, so I used it for initial configuration. Using FreeBSD 13.1, I got it to work with pkg install realtek-re-kmod And adding if_re_load="YES" if_re_name="/boot/modules/if_re.ko" to /boot/loader.conf A little annoying that it doesn't work out of the box on my particular operating system use case, but that's not really the card's fault, so not docking stars for that.

## 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 x1, x2, 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 Dual 2. 5 Gigabit Ethernet network adapter card provides a simple connection to two 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 & IEEE802. 3ab.
- The high quality PCIe Dual 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, 10. 7
- What you get: IO crest 2. 5 Gigabit PCI-E network card x1, driver Disk x1, 8cm low-profile bracket x1. Backed by Syba 3 year hassle-free and lifetime customer service. Important Note: only work with PCI-E slot, not for PCI slot.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XJ8CMQX |
| Best Sellers Rank | #41 in Internal Computer Networking Cards |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,091) |
| Date First Available | September 6, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.17 ounces |
| Item model number | SD-PEX24066 |
| Manufacturer | Syba |
| Product Dimensions | 4.2 x 0.5 x 5.5 inches; 3.17 ounces |
| Release date | September 6, 2019 |
| Type of item | Electronics |

## Product Details

- **Brand:** IO CREST
- **Hardware Interface:** PCI, PCI Express x1
- **Color:** multicolor
- **Compatible Devices:** Desktop
- **Product Dimensions:** 4.2"L x 0.5"W x 5.5"H
- **Data Link Protocol:** IEEE 802.3
- **Data Transfer Rate:** 25000 Megabits Per Second
- **UPC:** 810154018697
- **Global Trade Identification Number:** 00810154018697
- **Manufacturer:** Syba

## Images

![SD-PEX24066 - Image 1](https://m.media-amazon.com/images/I/61JLeD-FNLL.jpg)
![SD-PEX24066 - Image 2](https://m.media-amazon.com/images/I/71UAROYOpuL.jpg)
![SD-PEX24066 - Image 3](https://m.media-amazon.com/images/I/71eJ1PniqkL.jpg)
![SD-PEX24066 - Image 4](https://m.media-amazon.com/images/I/61uMBhsv9FL.jpg)
![SD-PEX24066 - Image 5](https://m.media-amazon.com/images/I/71oUd+gkhiL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Has anyone used this card with pfsense?**
A: I am using it now in a Pfsense server. Out of the box 5his card will not work with 2.4.5 p1. You will either need to manually integrate the new drivers in to the latest release or you can upgrade to 2.5 snapshot developmental release. 

Other option is to use Opnsense, which their latest stable build should support this card out of the box.

**Q: Why didn’t syba put heat sinks on the rtl8125 chips?  i’m seeing a lot of posts talking about throttling and erratic behavior from over heating.**
A: a few reviews dating as far back as Aug 2021 say this card was updated and now includes a heatsink.
but here it is 2023 and still the ad shows the [old] non-heatsink model card.
I don't think the Seller is very serious about marketing this product.

it appears from one review's photos that the heatsink doesn't cover the pair of RTL8125 ethernet chips
instead, it covers the ASM1182e chip, which is a 2-to-1 PCIe 2.0 "packet switch".
(assuming that's still on the board and wasn't updated to a better suited PCIe 3.0 switch).

https://m.media-amazon.com/images/I/71DvH7EMbgL.jpg
https://m.media-amazon.com/images/I/61hj6vAgZQL.jpg
https://m.media-amazon.com/images/I/814kvobDV-L.jpg
https://www.amazon.com/gp/customer-reviews/R2PUHQHMNBQ9HC
https://www.amazon.com/gp/customer-reviews/R24JDNHXCMCFAH

.

**Q: What pcie generation is it?**
A: PCIE 2.0 x1 lane
you can barely make out in one of the ad photos it has an ASM1182e chip.
the ASM1182e is a 2-to-1 PCIe 2.0 "packet switch".
the pair of RTL8125 ethernet chips connect through it, to one single PCIe lane.

since the pair of 2.5GbE running concurrently "could" transfer 5Gbps
but PCIe 2.0 lane speed is 5Gbps with 8b/10b encoding, 20% overhead
the max combined ethernet transfer is only 4Gbps.
or less.

you'll see a few Reviews here from people who caught on - that it can't produce 5Gbps.

**Q: Can the ports be aggregated in windows?  will it work with smb3?**
A: The ports for this card can't be aggregated.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Drop in and works under Linux with default drivers (Debian 11/12)
*by R***. on October 21, 2024*

I have three of these in a Proxmox cluster of machines, and all of them have worked out of the box with no issues. Repeat iperf3 tests has them pushing full speed without complications.

### ⭐⭐⭐⭐⭐ Works on FreeBSD if you install kernel module
*by C***S on February 4, 2023*

I wanted it for the uplink on my cable router to match my cable modem's ability to push 2.5 Gbps (even though I only get 1.5 Gbps service). The motherboard's stock ethernet port is only 1Gbps, so I used it for initial configuration. Using FreeBSD 13.1, I got it to work with pkg install realtek-re-kmod And adding if_re_load="YES" if_re_name="/boot/modules/if_re.ko" to /boot/loader.conf A little annoying that it doesn't work out of the box on my particular operating system use case, but that's not really the card's fault, so not docking stars for that.

### ⭐⭐⭐⭐ Needs some setup with Linux.
*by X***X on February 15, 2026*

Using it in proxmox, had to install the r8125-dkms drivers.

## Frequently Bought Together

- Syba Dual 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SD-PEX24066
- TP-Link 2.5GB PCIe Network Card (TX201) – PCIe to 2.5 Gigabit Ethernet Network Adapter, Supports Windows 11/10/8.1/8/7, Win Server 2022/2019/2016, Linux
- Plugable 2.5G USB C and USB to Ethernet Adapter, 2-in-1 Adapter Compatible with Thunderbolt 3 or USB 3.0, USB-C to RJ45 2.5 Gigabit LAN Ethernet, Compatible with Mac and Windows

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-04-01*