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 Dual SFP+ Port 10Gb PCI-E NIC Network Card, Broadcom BCM57810S Chipset, PCI Express Ethernet LAN Adapter for Windows Server/Windows/Linux/VMware

10Gtek Dual SFP+ Port 10Gb PCI-E NIC Network Card, Broadcom BCM57810S Chipset, PCI Express Ethernet LAN Adapter for Windows Server/Windows/Linux/VMware

Product ID: 213235141

Details

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

⚡10Gbps blazing speed

💻Broadcom BCM57810S chipset reliability

🔗Dual SFP+ ports for versatile connectivity

Description

🚀 Elevate your network game with 10Gtek’s dual-port powerhouse!

BLAZING 10 GBPS THROUGHPUT - Experience ultra-fast data transfer that keeps your network ahead of the curve.
FUTURE PROOF YOUR NETWORK - Perfect for professional setups demanding high bandwidth and low latency—don’t get left behind.
BROADCOM POWERED STABILITY - Industry-leading BCM57810S chipset ensures rock-solid compatibility and performance across Windows, Linux, and VMware.
PLUG PLAY WITH LOW PROFILE BRACKET - Effortless installation in both standard and compact cases—get up and running in minutes.
DUAL SFP PORTS FOR ULTIMATE FLEXIBILITY - Seamlessly connect to fiber or copper networks with dual high-performance ports.

The 10Gtek Dual SFP+ Port 10Gb PCI-E NIC Network Card, powered by the Broadcom BCM57810S chipset, delivers blazing 10Gbps speeds over a PCIe 2.0 x8 interface. Compatible with major server and virtualization platforms including Windows Server, Linux distros, and VMware, it offers flexible installation with both standard and low-profile brackets. Ideal for professionals seeking reliable, high-speed connectivity with broad OS support and easy setup.

Specifications

ASIN	B06XHGFD69
Best Sellers Rank	#37,067 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #55 in Network Interface Cards
Box Contents	Desiccant Packet, Low-Profile Bracket
Brand Name	10Gtek
Color	Red
Compatible Devices	Desktop
Compatible Operating System Family	Linux, Windows
Customer Reviews	4.4 4.4 out of 5 stars (54)
Data Link Protocol	Ethernet
Data Transfer Rate	10 Gigabytes Per Second
Hardware Interface	PCIE x 8
Importer Contact Information	Clicktech Retail Private Limited, 18, Rabindra Sarani, Poddar Court, Gate No.2, Ground Floor Kolkata, West Bengal, 700001. Phone: 18004192373, Email: [email protected]
Item Dimensions L x W x H	16.5L x 6.9W x 1.8H Centimeters
Item Type Name	Network Card
Item Weight Unit of Measure	127 Grams
Manufacturer	10Gtek, Shenzhen 10Gtek Transceivers Co. Ltd, Dongguan Branch, Area B, 5th Floor, Building 11, Jinnuo Industrial Park, Technology Avenue, Hetian Community, Houjie Town, Dongguan City, Guangdong Province, P.R. China, Email: @10gtek.com
Manufacturer Contact Information	Shenzhen 10Gtek Transceivers Co. Ltd, Dongguan Branch, Area B, 5th Floor, Building 11, Jinnuo Industrial Park, Technology Avenue, Hetian Community, Houjie Town, Dongguan City, Guangdong Province, P.R. China, Email: @10gtek.com
Manufacturer Part Number	BCM57810-2S(Broadcom-1pc)
Model Number	8541545746
Number of Items	1
Packer Contact Information	Shenzhen 10Gtek Transceivers Co. Ltd, Dongguan Branch, Area B, 5th Floor, Building 11, Jinnuo Industrial Park, Technology Avenue, Hetian Community, Houjie Town, Dongguan City, Guangdong Province, P.R. China, Email: @10gtek.com
Warranty Description	2 Year Manufacturer

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