---
product_id: 29845956
title: "SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042)"
brand: "syba"
price: "$3029"
currency: MXN
in_stock: true
reviews_count: 10
category: "Syba"
url: https://www.desertcart.mx/products/29845956-syba-multimedia-4-port-gigabit-ethernet-pci-e-x1-network
store_origin: MX
region: Mexico
---

# PCIe x1 Interface with Power Management 4 Gigabit Ethernet Ports High-performance RTL8111 Controller SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042)

**Brand:** syba
**Price:** $3029
**Availability:** ✅ In Stock

## Summary

> 🚀 Quad your network, quadruple your edge!

## Quick Answers

- **What is this?** SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042) by syba
- **How much does it cost?** $3029 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/29845956-syba-multimedia-4-port-gigabit-ethernet-pci-e-x1-network)

## Best For

- syba enthusiasts

## Why This Product

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

## Key Features

- • **Cross-Platform Ready:** Plug-and-play on Windows 10/11 with growing Linux/FreeBSD support—future-proof your setup.
- • **Thermal-Aware Design:** Built-in heatsink ensures sustained performance—just don’t block the airflow to keep it cool.
- • **Seamless PCIe Integration:** Auto-configures power management for efficient, hassle-free installation and operation.
- • **Quad-Port Gigabit Powerhouse:** Transform your PCIe slot into 4 blazing-fast Ethernet connections for ultimate network control.
- • **Enterprise-Grade Speed & Stability:** Compliant with IEEE 802.3ab for reliable 1000 Mbps throughput, perfect for demanding workflows.

## Overview

The SYBA Multimedia SI-PEX24042 is a robust PCI-Express x1 network card featuring four Gigabit Ethernet ports powered by the RTL8111 controller. It supports advanced PCI power management and complies with IEEE 802.3ab standards, delivering reliable 1 Gbps speeds. Ideal for professionals seeking to expand wired connectivity with seamless Windows compatibility and emerging Linux support, this card balances high performance with smart thermal design.

## Description

This PCI-Express RTL 8111 four Gigabit Ethernet controller card is a High performance 10/10/1000 BASE-T Ethernet LAN controller, that supports the PCI Express 1.1 buss interface for host communications with power management, and is Compliant with IEEE 802.3 ab specification for 1000 Mbps Ethernet.

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

- It also supports an auxiliary power auto-detect function
- Will auto-configure related bits of the PCI power management registers in PCI configuration space
- It is perfect for converting the PCI-Express interface into four Gigabit Ethernet Ports.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01HH6WETO |
| Best Sellers Rank | #46 in Internal Computer Networking Cards #1,006 in Computer Graphics Cards |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,095) |
| Date First Available | June 23, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.8 ounces |
| Item model number | SI-PEX24042 |
| Manufacturer | SYBA MULTIMEDIA, Inc. |
| National Stock Number | 0 |
| Product Dimensions | 6.88 x 4.75 x 0.75 inches; 4.8 ounces |
| Release date | June 16, 2018 |
| Type of item | Electronics |

## Product Details

- **Brand:** IO CREST
- **Hardware Interface:** Ethernet
- **Color:** Green
- **Compatible Devices:** Desktop
- **Product Dimensions:** 4.75"L x 0.75"W x 6.88"H
- **Data Link Protocol:** Ethernet, Gigabit Ethernet
- **Data Transfer Rate:** 1 Gigabits Per Second
- **Item Weight:** 0.3 Pounds
- **UPC:** 810154013104 754155926080
- **Global Trade Identification Number:** 00810154013104

## Images

![SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042) - Image 1](https://m.media-amazon.com/images/I/71R8A1DktaL.jpg)
![SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042) - Image 2](https://m.media-amazon.com/images/I/71ZwP9sJViL.jpg)
![SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042) - Image 3](https://m.media-amazon.com/images/I/71OuxYpdgBL.jpg)
![SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042) - Image 4](https://m.media-amazon.com/images/I/819ZfkENcgL.jpg)
![SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042) - Image 5](https://m.media-amazon.com/images/I/81sSKvFpaRL.jpg)

## Available Options

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

## Questions & Answers

**Q: Could this card be used for nic teaming?**
A: Dear Customer,This card does not have on board teaming, so you would have to rely on third party software for Teaming. But it can be used for Teaming.

**Q: Does this come with a low profile bracket, the video indicated that it does?**
A: Yes a low profile bracket is included.

**Q: Does each port act as it's on nic for a total of 4 different connections? or does it act like 2 nics?**
A: Dear Customer,This device acts like 4 individual NICs. They can be used and configured individually.

**Q: does asin b01hh6weto ( syba 4 port (quad) gigabit ethernet pci express 2.1 pci-e x1 network adapter card (nic) 10/100/1000 mbps card with realtek chip**
A: Dear Customer,
Does it do what? Yes? I'm gonna go with yes.

## 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

- SYBA Multimedia 4 Port Gigabit Ethernet PCI-e X1 Network Interface Card (SI-PEX24042)
- Corsair Dual SSD Mounting Bracket (3.5” Internal Drive Bay to 2.5", Easy Installation) Black

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-08*