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 10Gtek Broadcom BCM57810S Chipset 10 Gigabit Ethernet Sever Adapter Card (NIC), Dual SFP+ Port PCIE

Product ID: 305490810

Details

Brand
10Gtek
Colour
For Broadcom
Compatible devices
Desktop
Hardware interface
PCIE x 8
Product dimensions
16.5L x 6.9W x

⚡10Gbps blazing speed

💻PCIe 2.0 x8 interface for max throughput

🔌Dual SFP+ ports for versatile connectivity

Description

🚀 Upgrade your network game with 10Gtek’s powerhouse NIC!

DUAL SFP PORTS - Seamlessly connect to high-performance fiber networks with flexible port options.
FLEXIBLE INSTALLATION - Includes standard and low-profile brackets to fit any server or compact workstation.
BLAZING 10 GBPS DATA RATE - Experience ultra-fast network speeds that keep you ahead in the digital race.
BROADCOM BCM 57810 S CHIPSET - Industry-trusted chipset ensures rock-solid stability and compatibility.
PLUG PLAY WITH WINDOWS 11 - Get up and running in minutes with native driver support—no hassle, just speed.

The 10Gtek Broadcom BCM57810S Dual SFP+ 10 Gigabit Ethernet Server Adapter delivers blazing 10Gbps speeds over a PCIe 2.0 x8 interface. Featuring the reliable Broadcom chipset, it supports a wide range of server OS including Windows Server, Linux distros, and VMware. Designed for flexible installation with both standard and low-profile brackets, this NIC ensures seamless high-speed connectivity for professional-grade setups. Perfect for millennial managers who demand performance and stability without compromise.

Specifications

ASIN	B06XHGFD69
Best Sellers Rank	#38,541 in Computers ( See Top 100 in Computers ) #77 in Network Cards
Brand	10Gtek
Built-In Media	Desiccant Packet, Low-Profile Bracket
Color	For Broadcom
Compatible Devices	Desktop
Compatible Operating System Family	Windows
Customer Reviews	4.4 4.4 out of 5 stars (54)
Data Link Protocol	Gigabit 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	127 Grams
Manufacturer	10Gtek
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
Mfr Part Number	BCM57810-2S(Broadcom-1pc)
Model Number	8541545746
Number of Items	1
Number of Packs	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
Unit Count	1 Count

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