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

I recently purchased the 2.5GBase-T PCIe Network Adapter with RTL8125B chipset, and it has been a game-changer for my home network. This little powerhouse of a network card has made a significant difference in my data transfer speeds and overall network performance. Installation was a breeze, as the card fits perfectly into a PCIe slot on my motherboard. The drivers were easy to find and install, and I was up and running in no time. I was pleasantly surprised by the compatibility and stability of this card with my system. The most impressive aspect of this network adapter is, of course, its speed. The 2.5 Gigabit per second throughput is a substantial upgrade from my previous 1Gbps network card. I've noticed a significant improvement in file transfer speeds, online gaming, and 4K video streaming. Whether I'm transferring large files or enjoying lag-free online gameplay, this card has consistently delivered. The RTL8125B chipset seems to be doing a fantastic job in managing network traffic. I haven't experienced any connectivity issues, and it's been rock-solid since I installed it. It also supports various advanced features like Wake-on-LAN, which is a handy addition for remote management. Additionally, this network card remains cool and doesn't heat up excessively, even under heavy usage. It also features an efficient power management system, which is great for energy-conscious users. In conclusion, the 2.5GBase-T PCIe Network Adapter with the RTL8125B chipset is an excellent addition to any PC or server setup. If you're looking for a cost-effective way to upgrade your network speeds and improve overall network performance, this card is a solid choice. I couldn't be happier with my purchase, and I highly recommend it to anyone looking to make the leap to faster networking speeds without breaking the bank. Kudos to the makers of this fantastic product!

Easy to install, worked with windows without installing drivers. Fast speed.

Work with Linux out of the box

Just what I needed. My fiber internet provider talked me into upgrading from 1 Gig to 2 Gig service, but I quickly found I needed some new hardware to be able to take advantage of the new speed. The 10/100 network cards in most PCs top out at 1 Gig, so you're throttled to a Gig no matter what speed the provider delivers to your modem. Oh, yeah, and I needed a new modem, too, but they provided that. A quick speed test confirmed I was still at 1 Gig before I installed the new card, but then it immediately jumped to over 2 Gigs. The new card required no setup or configuration, but I did need to go into Windows Device Manager and disable the old integrated card to keep it from conflicting. Easy. I liked that the new router included a CAT 6e cable, because you'll likely need to upgrade those, too. Overall, I'm happy with the new card.

Installed on a 2010 MacPro running Mojave. The card was recognised but would not connect to internet. The Realtek site has drivers for MacOS 10.7 (Lion) which is over 10 years old. I hope the seller and manufacturer clarify which OS this has been tested on. (4 stars because I see it runs well on PCs. Good device just not for most Macs)

Works great! Slots in easy and sticks

I couldn't be happier with this network adapter! It was incredibly easy to install—literally plug and play. I didn't have to deal with complicated drivers or troubleshooting, which made the whole process a breeze. Once installed, it worked perfectly. My internet connection has been fast and stable, with no drops or interruptions. Whether I'm streaming, gaming, or just browsing, it performs flawlessly. For the price, this adapter is a steal, and it’s been a great upgrade for my setup. Highly recommend it for anyone looking for a hassle-free, reliable network adapter!

My onboard ethernet was limiting me to 1G speeds. This card delivered what was promised.

Transferts de gros fichiers vidéos sur le réseau local 2,5 fois plus rapide qu’avec le gigabit traditionnel.

It Does the JOB!

Ayant un ancien PC que je voulais upgrader j'ai installé cette carte sur le port PCIEx16 libre de ma carte mère. Sur le port PCIEx1 cette carte ne pourra pas donner tout son potentiel. Temps d'installation 5mn, il suffit de la clipser dans le PCIE de la carte mère. Au moment du boot du PC vous aurez un message "Realtek PCIe 2.5 Gigabit Ethernet Boot Agent Press Shift F10" Cela permet d'accéder à quelques réglages de la carte, mais c'est très sommaire. En fait rien à changer sauf peut-être le temps d'affichage de ce message. Autant sous windows11 que linux (ubuntu) aucun driver à installer. La carte est immédiatement détectée et se connecte en 2.5Gb sous réserve d'avoir une box avec un port ethernet 2.5Gb. Sinon elle se synchronisera en 1Gb ou 100 Mb selon ce que propose votre abonnement internet. Les tests de débit faits sous Win11 montrent que j'atteins bien 2Gb (le max que peut donner ma box internet). Tests réalisés avec l'application speedtest téléchargée sur le store. Sous windows/linux pour être sûr d'avoir les derniers drivers il faut aller sur le site de Realtek, récupérer le driver en cherchant Realtek PCIe FE / GBE / 2.5G / Gaming Ethernet Family Controller Software. Au final une bonne carte qui permet d'upgrader son PC très facilement et de profiter des débits de sa box.

Instalado en un slot PCIx12 de una placa madre Asus. Windows 11 pro. Funcionó a la primera, sin instalar drivers. Rendimientos perfecto. Me da la velocidad máxima contratada en subida y bajada. Estabilidad perfecta. Muy buena relación calidad precio

Cercavo un upgrade economico per passare da 1 Gbps a 2,5 Gbps senza cambiare i cavi di rete. Ho installato questa PCIe con chip Realtek RTL8125B per velocizzare copie e backup tra vari PC della mia rete domestica. 🛠️ QUALITÀ COSTRUTTIVA / DESIGN Scheda pulita e compatta, con staffa low-profile in dotazione e singola porta RJ45 con LED. Si inserisce in uno slot PCIe x1. Nessun dissipatore attivo: in uso normale non ho notato surriscaldamenti. ⚙️ PRESTAZIONI REALI Su Windows 10 l’ha riconosciuta subito. Con cavo Cat5e e switch 2,5G ho misurato trasferimenti reali intorno a 2,3–2,35 Gbps (circa 280–295 MB/s nei copia/incolla di file pesanti). Con MTU 9000 ho visto un leggero beneficio (+2–3% e CPU un filo più bassa). Rispetto alla mia precedente scheda 1G (10Gtek con Intel 82574L), nelle proprietà ho trovato meno opzioni avanzate da smanettare, ma la stabilità è nettamente migliorata: prima capitavano blocchi durante le copie di file molto grandi tra PC, adesso non succede più. Wake-on-LAN e PXE OK nelle mie prove. ✅ PUNTI DI FORZA Salto di velocità concreto fino a ~2,3 Gbps reali. Plug-and-play su Windows 10. Staffa low-profile inclusa per case compatti. Jumbo Frame supportati fino a 9K. Ottimo rapporto prezzo/prestazioni per l’uso domestico/pro. ⚠️ PUNTI DI DEBOLEZZA Meno opzioni avanzate nelle proprietà rispetto a schede Intel “storiche”. Su alcuni sistemi Linux conviene usare il driver dedicato per ottenere la massima banda. Con taluni switch l’EEE/risparmio energetico può dare link instabili: disattivandolo si risolve. Il supporto macOS può richiedere driver specifici e non è sempre “zero sbattimenti”. 🎯 PER CHI È INDICATO Per chi lavora con grossi file su NAS, fa backup frequenti, editing da rete o vuole accorciare i tempi di copia senza passare al 10G. Perfetta per home lab e postazioni creative. Meno adatta se cercate un pannello di settaggi avanzati in stile Intel. 🔚 VERDETTO FINALE Upgrade semplice e riuscito: velocità quasi piene da 2,5G, riconoscimento immediato e, soprattutto, stabilità ottima nelle copie pesanti. Le opzioni ridotte rispetto a certe schede 1G sono un compromesso accettabile. La ricomprerei.