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RTL8125B, Single-port RJ45 PCI-E Based Ethernet Network Interface Card, 2.5GBase-T, PCI-E v2.0 x1, Half & Full Bracket

Product No :102932
US$ 12.90  US$ 22.90
Accessory Series
127 in real-time stock, 02May, 2025
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1. Auto-adapt RJ45 port supports 10M/100M/1000M/2.5G.
2. Compatible with PCIe slots X1, X4, X8, and X16, ensuring installation flexibility.
3. Powered by the robust RTL8125B chipset for stable performance.
4. Support IEEE802.3az for reducing energy consumption.
5. Support comprehensive network protocols and diagnostic technologies.
See more

Specifications

2.5GBase-T RTL8125B Single-port Copper Ethernet Adapter

 

The QT-RTL8125B-T1 NIC helps you implement 2.5GbE Ethernet network connectivity in an affordable and simple way. It utilizes the Realtek RTL8125B chip to provide four speeds to your network: 2.5Gbps, 1Gbps, 100Mbps, and 10Mbps. Designed to be used in situations where a 10GbE port is not required but a Gigabit port will not suffice, this network adapter card is an excellent solution to your computer's need for network speed. This network adapter card adds an Ethernet port with 2.5GBASE-T technology to the computer through the PClex1 slot. It can be widely used in network devices such as PC computers, servers, industrial control equipment and other types of network terminal equipment, etc. This 2.5G network nard can realize Windows, linux and other system support. Realize up to 250% higher 2.5 Gigabit than Gigabit network rates over existing Gigabit Ethernet networks for a cost-effective multi-Gigabit Ethernet solution that is efficient and energy-saving.

    

Ports Single Controller RTL8125B-T1
Supported Ethernet Speeds 10M/100M/1000M/2.5G Host Interface PCI-E v2.0 x1
Cabling Type RJ45 copper cables OS Support Windows, Linux
Bracket Height Half & Full Max. Power Consumption 3.3w
Storage Humidity 90% max. non-condensing relative humidity at 35ºC Storage Temperature -40 °C to 70 °C (-40 °F to 158 °F)
Operating Humidity 85% max. non-condensing relative humidity Operating Temperature 0 °C to 55 °C (32 °F to 131 °F)
Dimensions 68x 54x 120mm Weight 0.12Kg

Quality Testing Program
Quality Certifications

Features

  • Lightning-Fast Speeds
    Support 10/100/1G/2.5Gbps speeds for lightning-fast internet, ideal for streaming, gaming, and efficient data transfers.
  • Advanced Protocol Standard
    Support comprehensive network protocols and network cable diagnostic technologies, including virtualization technology, TCP/IP, UDP, IPv4/IPv6, IEEE 802.3ab, IEEE 802.3az, etc.

Applications

Scenario 1

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Cat6 Network Ethernet Patch Cable Snagless Unshielded (UTP), PVC, Blue

Product details

Realtek RTL8125B Chip Delivers Stable Networking

  

Powered by the Realtek RTL8125B chip, this single-port network card ensures stable performance and fast, low-latency connections.

               

             


2.5x Faster Speeds, Instant Network Upgrade in One Step

 

Upgrade your network in a snap with speeds 2.5 times faster than traditional 1G Ethernet, perfect for home, business, and any high-speed transmission needs. Fully utilize the performance of devices such as 2000M broadband and 2.5G NAS.

                   



Versatile PCIe Slot: High Compatibility and Flexible Installation

 

The PCIe slot offers broad compatibility, working effortlessly with x1, x4, x8, and x16 cards, providing flexible upgrade options for your system.

 


 


Ideal for eSports, No more Lag

   

Wired connections offer lower latency for large-scale gaming and effectively address unstable Wi-Fi signals, reducing network delays and fluctuations for a fast and stable internet experience.

 

 

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RTL8125B, Single-port RJ45 PCI-E Based Ethernet Network Interface Card, 2.5GBase-T, PCI-E v2.0 x1, Half & Full Bracket

Accessory Series Realtek

Accessory Models RTL8125B | 1× 2.5G RJ45

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Mark

2023-12-15
This product works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent value fo ct works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent valur money!

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RTL8125B, Single-port RJ45 PCI-E Based Ethernet Network Interface Card, 2.5GBase-T, PCI-E v2.0 x1, Half & Full Bracket
US$ 12.90
Accessory Series
Realtek
Accessory Models
RTL8125B | 1× 2.5G RJ45
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RTL8125B, Single-port RJ45 PCI-E Based Ethernet Network Interface Card, 2.5GBase-T, PCI-E v2.0 x1, Half & Full Bracket ;jsessionid=B47A481343E93DAACA7B3BDD91C20D7E

Accessory Series Realtek ;jsessionid=B47A481343E93DAACA7B3BDD91C20D7E

Accessory Models RTL8125B | 1× 2.5G RJ45 ;jsessionid=B47A481343E93DAACA7B3BDD91C20D7E

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