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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10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA)

10Gb PCI-E NIC Network Card, Single SFP+ Port, with Intel 82599EN Controller, Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA1(E10G42BTDA)

Product ID: 34831237

Details

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

⚡10Gbps blazing speed

🔌Single SFP+ port for high-speed fiber

🖥️Intel 82599EN controller for rock-solid stability

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Description

🚀 Upgrade to 10Gtek — where speed meets stability for the modern pro!

PLUG PLAY VERSATILITY - Seamlessly compatible with Windows Server, Linux, VMware, and more — optimized for professional environments.
BLAZING 10 GBPS THROUGHPUT - Experience ultra-fast data transfers that crush 1Gbps bottlenecks and accelerate your workflows.
FUTURE PROOF YOUR NETWORK - Supports 10G SFP+ modules and DAC/AOC cables, perfect for data centers and high-demand media editing.
COMPACT FLEXIBLE INSTALLATION - Includes both full and low-profile brackets to fit any server or sleek desktop setup effortlessly.
ENTERPRISE GRADE INTEL CONTROLLER - Powered by the trusted Intel 82599EN chip, ensuring stable, virtualized, and reliable network performance.

The 10Gtek 10Gb PCI-E NIC Network Card features a single SFP+ port and the Intel 82599EN controller, delivering true 10Gbps Ethernet speeds. Compatible with Windows Server, Linux, and VMware, it supports advanced virtualization and fits both standard and low-profile cases. Ideal for data centers, media professionals, and anyone ready to break free from 1Gbps limits with reliable, enterprise-grade performance.

Specifications

ASIN	B01LZRSQM9
Best Sellers Rank	#15 in Internal Computer Networking Cards
Brand	10Gtek
Color	X520-10G-1S(1xSFP+)
Compatible Devices	Server, Desktop
Compatible Operating System Family	Linux, Windows
Customer Reviews	4.4 out of 5 stars 469 Reviews
Data Link Protocol	Ethernet
Data Transfer Rate	10 Gigabytes Per Second
EU Spare Part Availability Duration	3 Years
Hardware Interface	PCIE x 8
Item Weight	86 Grams
Manufacturer	10Gtek
Mfr Part Number	X520-DA1(Intel-1pc)
Minimum Required Operating System Version	Windows 10
Model Number	8541551539
Unit Count	1.0 Count

Reviews

G**U

7.04.2026

C**N

14.02.2020

J**S

21.02.2026

G**E

4.04.2026

B**K

29.07.2024

A**N

7.12.2025

N**S

17.07.2024

W**T

24.06.2025

A**R

8.10.2019

M**F

15.06.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

Rp2086220

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In stock

Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

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