What's the difference between the x540-t2 and x550-t2 ?

The X520 and X540 have a PCIe 2.0 x8 interface, which has 32Gbit/s bandwidth. The X550 has a PCIe 3.0 x4 interface, which has 32Gbit/s bandwidth. The single-port versions may be used in slower slots: X520-T1/DA1 or X540-T1/DA1 will work in a PCIe 2.0 x4 slot (at 16Gbit/s); the manual says the T550-T1 should work in a PCI 2.0 x4 slot as well, although I haven’t tried it.

Has anyone actually gotten close to the 10gbps connection speed for this card? pcie 2.0 has limit of 5 gt/s or about 4gpbs max. so can it be 10gb?

The card is PCIe 2 with x8 lanes, which is 4 GigaByte per second. 4 GigaByte is the same as 32 GigaBit, so it should handle 10 GigaBit just fine.

Will this card negotiate down to a pcie gen 3 x2? i think my only free x4 slot only runs in x2 mode which is why i'm asking.

No, please kindly note that the X550-T1 supports PCIe v3.0 (8.0GT/s) (Compatible with 2.0 and 1.1) X4/X8/X16 Lane, and it does not support X2.

does this work with windows 11?

I have not gotten it to work with windows 11. The seller says to install drivers 26.7 but those dont work

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10Gtek 10Gb Dual RJ45 Port Network Card with X540 Controller, PCIe Ethernet LAN Adapter for Windows/Linux/ESX Servers, Compare to Intel X540-T2

10Gtek 10Gb Dual RJ45 Port Network Card with X540 Controller, PCIe Ethernet LAN Adapter for Windows/Linux/ESX Servers, Compare to Intel X540-T2

Product ID: 33382923

Details

Brand
10Gtek
Color
Compatible Devices
Server Desktop
Compatible Operating System Family
Linux Windows
Data Link Protocol
Ethernet
Data Transfer Rate
10 Gigabits

⚡10Gbps blazing speed

🔌Dual RJ45 ports for max connectivity

🧠Intel X540 chip with intelligent offloads

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Details

Brand
10Gtek
Color
Compatible Devices
Server Desktop

Description

⚡ Upgrade your network game with 10Gtek’s dual-port speedster!

DUAL RJ 45 PORTS - Seamlessly connect to Cat6a/Cat7 cables for up to 100m of high-speed networking.
INTEL X 540 CONTROLLER - Enterprise-grade chipset ensures rock-solid stability and efficient CPU offloading.
BLAZING 10 GBPS THROUGHPUT - Experience ultra-fast data transfers that keep your workflow lightning quick.
PLUG PLAY PC IE X 8 COMPATIBILITY - Fits perfectly in PCIe x8 or x16 slots for versatile server and workstation setups.
ROBUST BUILD WITH LOW PROFILE BRACKET - Easy installation in compact cases without compromising performance or cooling.

The 10Gtek 10Gb Dual RJ45 Port Network Card, powered by the Intel X540 controller, delivers enterprise-grade 10Gbps Ethernet connectivity with dual RJ45 ports supporting Cat6a/Cat7 cables. Compatible with Windows, Linux, and ESX servers, it offers intelligent offloads for stable, low-latency performance. Designed for PCIe x8/x16 slots and including a low-profile bracket, this card is ideal for professionals demanding high-speed, reliable network access in data centers or advanced home office setups.

Specifications

ASIN	B01HMGWOU8
Best Sellers Rank	#15 in Internal Computer Networking Cards
Brand	10Gtek
Color	X540-10G-2T(2xRJ45)
Compatible Devices	Server, Desktop
Compatible Operating System Family	Linux, Windows
Customer Reviews	4.3 out of 5 stars 385 Reviews
Data Link Protocol	Ethernet
Data Transfer Rate	10 Gigabits Per Second
Hardware Interface	PCIE x 8
Item Dimensions L x W x H	8.8"L x 5.7"W x 2.69"H
Item Weight	136 Grams
Manufacturer	10Gtek
Mfr Part Number	X540-T2 (Intel-1pc)
Minimum Required Operating System Version	Windows 7
Model Number	X540-T2(Intel-1pc)
Product Dimensions	8.8"L x 5.7"W x 2.69"H
Unit Count	1.0 Count

Reviews

J**S

30.06.2024

J**N

1.12.2025

W**F

25.11.2024

J**E

19.04.2026

K**.

1.03.2026

B**S

19.03.2026

T**S

8.04.2026

T**S

24.03.2026

A**R

1.02.2026

M**H

21.07.2021

R**A

8.01.2026

L**E

4.01.2023

T**I

18.11.2025

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