--- product_id: 287314742 title: "2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile" brand: "ulansen" price: "€ 36.86" currency: EUR in_stock: true category: "Ulan Se N" url: https://www.desertcart.pt/products/287314742-2-5gbase-t-pcie-network-adapter-rtl8125b-2500-1000-100mbps store_origin: PT region: Portugal --- # 2.5Gbps blazing speed Integrated heat sink cooling Dual bracket flexible install 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile **Brand:** ulansen **Price:** € 36.86 **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade Your Network, Upgrade Your Life! ## Quick Answers - **What is this?** 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile by ulansen - **How much does it cost?** € 36.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/287314742-2-5gbase-t-pcie-network-adapter-rtl8125b-2500-1000-100mbps) ## Best For - ulansen enthusiasts ## Why This Product - Trusted ulansen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Blazing 2.5Gbps Speeds:** Experience 2.5x faster data transfer than standard Gigabit Ethernet—perfect for gaming, 4K streaming, and heavy file transfers. - • **Cross-Platform Plug & Play:** Supports Windows, Linux, and macOS with hassle-free installation and driver support for instant network acceleration. - • **Advanced Networking Features:** Supports Wake-on-LAN, PXE Boot, VLAN tagging, and popular server OS like DSM, PVE, and OpenWrt for professional-grade network control. - • **Universal PCIe Compatibility:** Fits PCIe x1/x4/x8/x16 slots with both standard and low-profile brackets—seamlessly upgrade any desktop or mini PC setup. - • **Rock-Solid Stability & Cooling:** Powered by the advanced RTL8125B chipset with integrated heat sink for uninterrupted, lag-free connectivity even under heavy loads. ## Overview The 2.5GBase-T PCIe Network Adapter with RTL8125B chipset delivers ultra-fast 2.5Gbps Ethernet speeds, compatible with Windows, Linux, and macOS. Featuring dual brackets for versatile installation and an integrated heat sink for reliable cooling, it supports advanced networking protocols like Wake-on-LAN and PXE Boot. Ideal for gamers, professionals, and tech enthusiasts seeking a seamless, high-performance network upgrade. ## Description Buy 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile: Network Cards - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Flexible Installation with Dual Brackets – Designed for various PC setups, this PCIe 2.5Gb network card includes both standard and low-profile brackets, making it compatible with full-size desktops, mini PCs, workstations, and small form-factor computers. Works with PCIe x1, x4, x8, and x16 slots for seamless integration. - Ultra-Fast 2.5G Network Speeds – Upgrade your desktop PC with this 2.5G network card, delivering 2.5Gbps high-speed connectivity, 2.5x faster than traditional Gigabit Ethernet. Ideal for gaming, 4K streaming, large file transfers, and cloud computing, ensuring ultra-low latency and seamless performance. - Universal Compatibility & Easy Setup – This 2.5Gb PCIe network card supports Windows 11/10/8.1/8/7, Linux, and Mac OS. Plug-and-play on Windows 10, with an easy driver download for other systems. Perfect for workstations, gaming rigs, servers, and home networking.Support DSM,PVE,ikuai,unraid6.9.2, OpenWrt ESXI6.7 (Doesn’t support ESXI 7.0) - Stable & Reliable Performance – Built with an advanced Realtek RTL8125B chip, this 2.5G PCIe Ethernet card ensures efficient data transfer, reduced latency, and a stable network connection. The integrated heat sink improves heat dissipation, ensuring long-lasting durability and uninterrupted performance. Supports Wake on LAN, PXE Boot, and VLAN tagging for advanced networking. - 180-Day Worry-Free Warranty & Reliable Support：Backed by a 180-day worry-free warranty and friendly customer service. If you encounter any issues, we’ll assist you promptly. If the problem can’t be resolved, enjoy a no-questions-asked refund with no return required—shop with confidence! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08V1HG47H | | Best Sellers Rank | #107 in Internal Computer Networking Cards | | Brand | ULANSeN | | Compatible Devices | Laptop | | Customer Reviews | 4.5 4.5 out of 5 stars (1,606) | | Hardware Interface | Ethernet | | Item Dimensions L x W x H | 2.8"L x 1.97"W x 0.08"H | | Manufacturer | ULANSON | | Mfr Part Number | RTL8125B | | Model Number | RTL8125B | | Number of Items | 1 | | Operating System | ['Windows', 'macOS', 'Linux'] | | Style Name | Classic | ## Product Details - **Brand:** ULANSeN - **Compatible Devices:** Laptop - **Hardware Interface:** Ethernet - **Product Dimensions:** 2.8"L x 1.97"W x 0.08"H - **Style:** Classic ## Images ![2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile - Image 1](https://m.media-amazon.com/images/I/61jNjSNSj3L.jpg) ## Frequently Bought Together - 2.5GBase-T PCIe Network Adapter RTL8125B 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile - UGREEN USB to Ethernet Adapter 2.5Gb, Ethernet to USB Adapter, Aluminum, USB 3.0 to RJ45 Computer Network Internet LAN Ethernet Dongle for Laptop, Compatible for MacBook Air/Pro, XPS, Windows, macOS - Cat 8 Ethernet Cable, 1.5Ft 3Ft 6Ft 10Ft 15Ft 20Ft 30Ft 40Ft 50Ft 60Ft 100Ft Heavy Duty High Speed Internet Network Cable, Professional LAN Cable Shielded in Wall, Indoor&Outdoor --- ## 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.pt/products/287314742-2-5gbase-t-pcie-network-adapter-rtl8125b-2500-1000-100mbps](https://www.desertcart.pt/products/287314742-2-5gbase-t-pcie-network-adapter-rtl8125b-2500-1000-100mbps) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-19*