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 PCI-E NIC Network Card, Dual SFP+ Port, with Intel 82599ES Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA2(E10G42BTDA)

Product ID: 33382921

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

🔗Dual SFP+ ports for versatile connectivity

🖥️Intel 82599ES controller for rock-solid stability

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Description

🚀 Upgrade your network to pro-level 10Gbps speed — because buffering is so last decade!

DUAL SFP PORTS - Seamlessly connect to high-performance 10G modules or DAC cables for flexible setups.
INTEL 82599 ES POWERHOUSE - Leverage enterprise-grade controller technology for unmatched reliability and virtualization support.
BLAZING 10 GBPS THROUGHPUT - Experience ultra-fast data transfer that future-proofs your network infrastructure.
PLUG PLAY ON LINUX WINDOWS - Effortless integration with major OS including Windows Server and Linux distros—perfect for pros who demand stability.
COMPACT VERSATILE FORM FACTOR - Includes both full and low-profile brackets to fit any server or sleek workstation chassis.

The 10Gb PCI-E NIC Network Card by 10Gtek features dual SFP+ ports powered by the Intel 82599ES controller, delivering true 10Gbps Ethernet speeds. Compatible with Windows Server, Linux, and VMware, it supports advanced virtualization and storage protocols like iSCSI and FCoE. Designed for both full and low-profile PCI-E x8/x16 slots, this card offers enterprise-grade performance and reliability, making it an ideal upgrade for data centers, home labs, and professional server environments.

Specifications

ASIN	B01DCZCA3O
Best Sellers Rank	#10 in Internal Computer Networking Cards
Brand	10Gtek
Color	X520-10G-2S(2xSFP+)
Compatible Devices	Server, Desktop
Compatible Operating System Family	Linux, Windows
Customer Reviews	4.4 out of 5 stars 236 Reviews
Data Link Protocol	Ethernet
Data Transfer Rate	10 Gigabytes Per Second
Hardware Interface	PCIE x 8
Item Dimensions L x W x H	10.35"L x 6.42"W x 2.17"H
Item Weight	0.35 Pounds
Manufacturer	10Gtek
Mfr Part Number	10Gtek X520-DA2
Minimum Required Operating System Version	Windows 7
Model Number	X520-DA2(Intel-1pc)(UK)
Product Dimensions	10.35"L x 6.42"W x 2.17"H
UPC	603149407824

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€ 111.83

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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