--- product_id: 806232825 title: "2.5G PCIe Network Adapter Card, SYOSI RTL8125B Ethernet LAN Card, 2500/1000/100Mbps RJ45 Network Controller, High-Speed Ethernet PCI Express Adapter, PXE Support for Windows Linux Mac" brand: "syosi" price: "R784" currency: ZAR in_stock: true category: "Syosi" url: https://www.desertcart.co.za/products/806232825-2-5g-pcie-network-adapter-card-syosi-rtl8125b-ethernet-lan store_origin: ZA region: South Africa --- # 2.5Gbps blazing speed Multi-OS seamless support PCIe x1/x4/x8/x16 slot fit 2.5G PCIe Network Adapter Card, SYOSI RTL8125B Ethernet LAN Card, 2500/1000/100Mbps RJ45 Network Controller, High-Speed Ethernet PCI Express Adapter, PXE Support for Windows Linux Mac **Brand:** syosi **Price:** R784 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your network, upgrade your game. ## Quick Answers - **What is this?** 2.5G PCIe Network Adapter Card, SYOSI RTL8125B Ethernet LAN Card, 2500/1000/100Mbps RJ45 Network Controller, High-Speed Ethernet PCI Express Adapter, PXE Support for Windows Linux Mac by syosi - **How much does it cost?** R784 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/806232825-2-5g-pcie-network-adapter-card-syosi-rtl8125b-ethernet-lan) ## Best For - syosi enthusiasts ## Why This Product - Trusted syosi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Advanced Network Tech:** Supports PXE boot, VLAN tagging, Auto-MDIX, and full duplex flow control for professional-grade networking. - • **Instant Status Feedback:** Built-in LED indicators keep you informed of link status and speed at a glance. - • **Plug & Play Multi-OS Support:** Works effortlessly across Windows, Linux, and Mac—no driver hassle on Windows 10+. - • **Universal PCIe Compatibility:** Fits any PCIe slot from x1 to x16 with included standard & low-profile brackets for versatile setups. - • **Blazing 2.5Gbps Ethernet Speed:** Experience ultra-fast data transfers that crush lag and boost productivity. ## Overview The SYOSI 2.5G PCIe Network Adapter Card leverages the Realtek RTL8125B chipset to deliver blazing 2.5Gbps Ethernet speeds with backward compatibility. Designed for PCIe slots (x1/x4/x8/x16), it supports Windows, Linux, and Mac OS with easy installation and advanced networking features like PXE boot and VLAN tagging. Ideal for gamers, streamers, and professionals demanding reliable high-speed connectivity. ## Description Product description High up to 2.5G with Realtek RTL8125B chip, much faster data-transfer speeds for gaming, living broadcasts and downloads in bandwidth-demanding tasks. Seamless backward compatibility for 2.5Gbps/1Gbps/100Mbps Support Windows11/10/8.1/8/7, MAC OS and Linux, no dirver needed on Windows10, easily download the driver in Realtek official website for other OS. This 2.5GBASE-T PCIe Network Adater convers a PCIe slot(X1/X4/X8/16) into a 2.5G RJ45 Ethernet Port. Note: Only work with PCIe slot, not for PCI slot. ## Features - 💻【High-Speed 2.5Gbps Network】Equipped with Realtek RTL8125B chip, supports up to 2.5Gbps speed and backward compatible with 1Gbps/100M/10M. Works with standard Cat5e or above cables up to 100m (328ft) for reliable high-speed connectivity. - 🖥️【PCIe Slot Compatible】Fits PCIe X1, X4, X8, X16 slots. Comes with standard and low-profile brackets for flexible installation in PCs, servers, workstations, NAS, etc. Not compatible with PCI slots. - 🛠️【Multi-OS Support】Compatible with Windows 10/8.1/8/7/Server 2012/2008, Linux, and Mac OS. Drivers available via CD-ROM, bracket link, or Realtek official website for easy installation. - 🌐【Advanced Network Features】Supports PXE boot, Auto-MDIX, VLAN tagging (IEEE 802.1Q), 2.5GBASE-T (IEEE802.3bz), Full Duplex flow control (IEEE 802.3x), and Layer 2 Priority Encoding (IEEE 802.1P). - ⚡【Easy Installation & Status Indicators】Simply choose the appropriate bracket, insert into PCIe slot, install driver, and connect to the network. LED indicators display link status and speed. Responsive support available via email for any questions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0GGH82SK1 | | Best Sellers Rank | #37,554 in Computers ( See Top 100 in Computers ) #74 in Network Cards | | Brand | SYOSI | | Compatible Devices | Desktop | | Compatible Operating System Family | Linux, Windows | | Compatible devices | Desktop | | Country of Origin | China | | Data Link Protocol | Ethernet | | Data Transfer Rate | 2500 Gigabits Per Second | | Data link protocol | Ethernet | | Data transfer rate | 2500 Gigabits Per Second | | Hardware Interface | Ethernet | | Hardware interface | Ethernet | | Manufacturer | SYOSI | | UPC | 768649503022 | ## Images ![2.5G PCIe Network Adapter Card, SYOSI RTL8125B Ethernet LAN Card, 2500/1000/100Mbps RJ45 Network Controller, High-Speed Ethernet PCI Express Adapter, PXE Support for Windows Linux Mac - Image 1](https://m.media-amazon.com/images/I/61tj-IflxML.jpg) --- ## 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.co.za/products/806232825-2-5g-pcie-network-adapter-card-syosi-rtl8125b-ethernet-lan](https://www.desertcart.co.za/products/806232825-2-5g-pcie-network-adapter-card-syosi-rtl8125b-ethernet-lan) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-15*