---
product_id: 166214734
title: "2.5 Gigabit Ethernet PCI Express PCI-E Network Controller Card 10/100/1000/25000 Mbps RJ45 LAN Adapter Converter for Desktop PC (SI-PEX24059)"
brand: "io crest"
price: "R$569"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/166214734-2-5-gigabit-ethernet-pci-express-pci-e-network-controller
store_origin: BR
region: Brazil
---

# 2.5 Gbps blazing speed Universal PCIe x1-x16 compatibility Low-profile bracket for compact builds 2.5 Gigabit Ethernet PCI Express PCI-E Network Controller Card 10/100/1000/25000 Mbps RJ45 LAN Adapter Converter for Desktop PC (SI-PEX24059)

**Brand:** io crest
**Price:** R$569
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your desktop to ultra-fast 2.5G Ethernet—because buffering is so last decade!

## Quick Answers

- **What is this?** 2.5 Gigabit Ethernet PCI Express PCI-E Network Controller Card 10/100/1000/25000 Mbps RJ45 LAN Adapter Converter for Desktop PC (SI-PEX24059) by io crest
- **How much does it cost?** R$569 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/166214734-2-5-gigabit-ethernet-pci-express-pci-e-network-controller)

## 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

- • **Reliable & Worry-Free:** Backed by a 3-year hassle-free warranty and lifetime customer support—network upgrades without the stress.
- • **Broad OS Compatibility:** Supports Windows (all the way back to XP), Linux, and Mac OS 10.7—no driver headaches, just instant connection.
- • **Blazing 2.5 Gigabit Speed:** Experience lightning-fast wired connectivity up to 2500 Mbps—future-proof your network now.
- • **Compact Low-Profile Design:** Includes an 8cm low-profile bracket for sleek, space-saving setups in small form factor cases.
- • **Plug & Play PCIe Versatility:** Fits any PCI Express slot from x1 to x16, making installation seamless on virtually any desktop or HTPC.

## Overview

The IO Crest SI-PEX24059 is a high-performance 2.5 Gigabit Ethernet PCI Express network card that fits any PCIe slot (x1 to x16) and supports speeds up to 2500 Mbps. It includes both standard and low-profile brackets for versatile installation in desktops and compact HTPCs. Compatible with a wide range of operating systems including Windows, Linux, and Mac OS, it offers hassle-free setup and is backed by a 3-year warranty and lifetime support.

## Description

IO Crest 2.5 Gigabit Ethernet PCI Express PCI-E Network Controller Card 10/100/1000/25000 Mbps RJ45 LAN Adapter Converter for Desktop PC (SI-PEX24059)

## 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 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 & IEEE802.3ab.
- The 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.
- 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, 7-64 Bit, Linux, Mac OS 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 IO crest 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 |
|---------------|-------|
| Brand | IO Crest |
| Product Dimensions | 10.92 x 1.27 x 13.97 cm; 90.72 g |
| Item model number | SI-PEX24059 |
| Manufacturer | SYBA Multimedia, Inc. |
| Series | SI-PEX24059 |
| Colour | multicolor |
| Operating System | Windows 10, 8/8.1, 98SE, ME, 2000, XP, xp-64bit, Vista, vista-64bit, 7, 7-64 Bit, Linux, Mac OS 10.7 |
| Are Batteries Included | No |
| Item Weight | 90.7 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** IO Crest
- **Hardware interface:** PCI Express x1, Ethernet, PCI
- **Colour:** multicolor
- **Compatible devices:** Desktop
- **Product dimensions:** 10.9L x 1.3W x 14H centimetres
- **Data link protocol:** IEEE 802.3
- **Data transfer rate:** 2.5 Gigabits Per Second
- **Item weight:** 0.2 Pounds
- **UPC:** 857426008260
- **Global Trade Identification Number:** 00857426008260

## Images

![2.5 Gigabit Ethernet PCI Express PCI-E Network Controller Card 10/100/1000/25000 Mbps RJ45 LAN Adapter Converter for Desktop PC (SI-PEX24059) - Image 1](https://m.media-amazon.com/images/I/71lsMMrdhqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good for upgrading from 1Gb to 2.5Gb network.
*by A***R on 26 April 2022*

Used to upgrade an older PC for use on a 2.5Gb network. Hardware installation was easy and took 10 minutes, and Windows 10 installed a driver for it so it worked straight away. However I was getting 280-odd MB/s incoming, but only 170-ish outgoing. So I installed the driver on the included CD (Realtek 8125 chipset) and that got full speed in both directions. So far seems like a great, economic way to upgrade.

### ⭐⭐⭐⭐⭐ Great little network card.
*by O***I on 2 April 2021*

Installed into a full size slot on my motherboard. The card comes with 2 size brackets, with the larger bracket being fitted and the smaller size bracket in the box.Windows 10 detected the card straight away and didn't need to use the supplied driver cd.I've been running this card for 1 month now without a single issue with excellent speeds.

### ⭐⭐⭐⭐ Good but no Windows 7 driver
*by R***D on 30 June 2024*

There is no Windows 7 driver on the disc but it can easily be downloaded from the Realtek site. Otherwise easy installation and good perfrmance.

## Frequently Bought Together

- IO CREST 2.5 Gigabit Ethernet PCI Express PCI-E Network Interface Card 10/100/1000/25000 Mbps RJ45 LAN SI-PEX24059
- 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
- Cable Matters 10Gbps Snagless Shielded Cat 6A Ethernet Cable - 14ft, Cat 6A Cable, Cat6A Cord, Ethernet Cord, Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/166214734-2-5-gigabit-ethernet-pci-express-pci-e-network-controller](https://www.desertcart.com.br/products/166214734-2-5-gigabit-ethernet-pci-express-pci-e-network-controller)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-27*