--- product_id: 403124885 title: "NICGIGA 2.5G Base-T PCIe Network Adapter, Realtek RTL8125B 2.5Gbps/1Gbps/100Mbps PCI Express Gigabit Network Card Convert to Ethernet RJ45 LAN Port for Gaming/Office, Support Windows/Linux" brand: "nicgiga" price: "€ 43.90" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.pt/products/403124885-nicgiga-2-5g-base-t-pcie-network-adapter-realtek-rtl8125b store_origin: PT region: Portugal --- # 2.5Gbps blazing speed Seamless backward compatibility Advanced heat dissipation NICGIGA 2.5G Base-T PCIe Network Adapter, Realtek RTL8125B 2.5Gbps/1Gbps/100Mbps PCI Express Gigabit Network Card Convert to Ethernet RJ45 LAN Port for Gaming/Office, Support Windows/Linux **Brand:** nicgiga **Price:** € 43.90 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your network, upgrade your game — don’t get left behind! ## Quick Answers - **What is this?** NICGIGA 2.5G Base-T PCIe Network Adapter, Realtek RTL8125B 2.5Gbps/1Gbps/100Mbps PCI Express Gigabit Network Card Convert to Ethernet RJ45 LAN Port for Gaming/Office, Support Windows/Linux by nicgiga - **How much does it cost?** € 43.90 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/403124885-nicgiga-2-5g-base-t-pcie-network-adapter-realtek-rtl8125b) ## Best For - nicgiga enthusiasts ## Why This Product - Trusted nicgiga brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **PCIe Powerhouse:** Transforms any PCIe slot into a high-speed 2.5G RJ45 Ethernet port for ultimate connectivity. - • **24/7 Expert Support:** Lifetime technical assistance ensures you’re never left offline or frustrated. - • **Blazing 2.5Gbps Speed:** Experience lightning-fast data transfers that crush lag and boost productivity. - • **Universal Compatibility:** Plug & play with Windows, Linux, and Mac OS—no driver hassle for Windows 10 users. - • **Versatile Fit & Cool Performance:** Includes standard and low-profile brackets plus a heat sink to keep your system stable and cool. ## Overview The NICGIGA 2.5G Base-T PCIe Network Adapter leverages the Realtek RTL8125B chip to deliver up to 2.5Gbps Ethernet speeds, ideal for gaming, streaming, and heavy data tasks. Compatible with Windows, Linux, and Mac OS, it fits any PCIe slot and includes heat dissipation features for stable performance. With easy installation and lifetime support, it’s the smart upgrade for professionals demanding faster, reliable wired connectivity. ## Description NICGIGA 2.5G Base-T PCIe Network Adapter, Realtek RTL8125B 2.5Gbps/1Gbps/100Mbps PCI Express Gigabit Network Card Convert to Ethernet RJ45 LAN Port for Gaming/Office, Support Windows/Linux ## Features - [Super-fast 2.5Gbps Networking] High up to 2.5x-speed with Realtek RTL8125B chip, much faster data-transfer speeds for gaming, living broadcasts and downloads in bandwidth-demanding tasks. - [Complete Compatibility] 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. - [PCIe to 2.5G RJ45] 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. - [Widely Use with Heat Sink]Comes with standard bracket and low-profile-bracket to meet the needs of different cases such as desktop, workstation, server, mini tower computer and so on. Excellent heat dissipation can reduce the temperature quickly and maintain the stability of network transmission. - [Customer Service]Friendly service for lifetime technical supporte. If you encounter any problems, please contact us, our customer team will slove the problem for you within 24 hours. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09HGRK5XB | | Best Sellers Rank | #75,972 in Computers (See Top 100 in Computers) #172 in Network Cards | | Brand | NICGIGA | | Color | black | | Compatible Devices | Desktop | | Compatible Operating System Family | Linux | | Customer Reviews | 4.6 4.6 out of 5 stars (592) 4.6 out of 5 stars | | Data Link Protocol | Ethernet | | Data Transfer Rate | 2500 Megabits Per Second | | Hardware Interface | Ethernet, PCI | | Item Dimensions L X W X H | 10L x 6W x 2H centimeters | | Item Weight | 0.09 Kilograms | | Manufacturer | NICGIGA | | Mfr Part Number | NIC-2.5G | | Model Number | NIC-2.5G | | Number Of Items | 1 | | Number Of Packs | 1 | | Unit Count | 1.0 Count | | Upc | 756166630512 | ## Product Details - **Brand:** NICGIGA - **Colour:** black - **Compatible devices:** Desktop - **Hardware interface:** Ethernet, PCI - **Product dimensions:** 10L x 6W x 2H centimeters ## Images ![NICGIGA 2.5G Base-T PCIe Network Adapter, Realtek RTL8125B 2.5Gbps/1Gbps/100Mbps PCI Express Gigabit Network Card Convert to Ethernet RJ45 LAN Port for Gaming/Office, Support Windows/Linux - Image 1](https://m.media-amazon.com/images/I/61tebFtcfnL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Très bon produit *by on Reviewed in France 16 July 2026* Au top, installation simple et rapide. J'ai bien tout le débit annoncé, pas de bridage de ça part ### ⭐⭐⭐⭐⭐ Good product that solved Asus motherboard problem *by on Reviewed in the United Kingdom 1 March 2022* In case you don't want to read the full review the short version is: Good card, worth the money, fully recommended.The problem: The first picture shows the problem: a 1Gbps connection that only reaches just over 300Mbps, with a wired connection. Having checked every piece of equipment between modem and motherboard, including running a CAT 7 cable directly between the two the problem was finally identified as a dodgy Intel chipset on the ASUS B550-F motherboard. In other words the onboard LAN was just unable to deliver the full broadband speed - and had been delivering substandard speeds for some time.The solution: pictures 2-4: a NICGIGA 2.5Gbps PCI-E card with a Realtek chipset. Why this card? Well, simply put, it has a black backplate that fits in with the motherboard's black backplates. I know, not the best reason but it also has a known chipset, a decent heatsink on the main chip, an handle over the 1Gbps bandwidth, future-proofs to a certain extent and is at good price point.(A quick note about the future-proofing: a 1 Gigabit connection can potentially deliver over 1Gbps - up to 1.3Gbps - whereas a 1Gbps card stops at 1Gbps. This card is 2.5Gbps and so will handle over 1Gbps and provides some future-proofing for when the next major speed increase comes in.)Install: was really simple: unscrew a backplate, install the card, screw in the card, close the case and plug in a CAT 7 cable bought at the same time - KINBETA high speed 10Gbps 2 metre CAT 7 flat braided cable - and switch on PC. See pictures 6-8.The result: picture 9 shows the result. As soon as the PC started the card was recognised, no driver download was needed. The download speed jumped from 321.5Mbps to 925Mbps (picture 9) solving the problem in a most elegant way.It is interesting to note that the ping was 9ms both before and after upgrading the NIC and upload also remained the same - the 52Mbps which was the expected speed and initially highlighted the problem.For those with a small form factor PC it is worth noting that a smaller backplate is provided (see picture 5) as well as a screwdriver and two screws.Overall very happy with this purchase it solved the problem at a reasonable cost and I can feel the difference the higher speed connection makes. Definitely recommend this card. ### ⭐⭐⭐⭐⭐ Funziona *by on Reviewed in Italy 19 June 2026* Da paura ## Frequently Bought Together - NICGIGA 2.5G Base-T PCIe Network Adapter, Realtek RTL8125B 2.5Gbps/1Gbps/100Mbps PCI Express Gigabit Network Card Convert to Ethernet RJ45 LAN Port for Gaming/Office, Support Windows/Linux - 5 Port 2.5GB Ethernet Switch Unmanaged Network Switch | 5 x 2.5 Gigabit | 1 x 10G SFP+ | Multigig Switch 10-100-1000Mbps | 45G Bandwidth | Plug & Play | Fanless Metal Internet Switch | NOT Support VPN - UGREEN 2.5Gb USB to Ethernet Adapter - Aluminum, USB 3.0 to RJ45 Dongle for Laptop, Compatible with MacBook, XPS, Windows, macOS --- ## 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/403124885-nicgiga-2-5g-base-t-pcie-network-adapter-realtek-rtl8125b](https://www.desertcart.pt/products/403124885-nicgiga-2-5g-base-t-pcie-network-adapter-realtek-rtl8125b) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-05*