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header-product InLine 51125T Internal Ethernet Network Card PCI Express Wired 2500 Mbit/s

InLine 51125T Internal Ethernet Network Card PCI Express Wired 2500 Mbit/s

InLine 51125T Network Card Photo 1
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InLine 51125T Network Card Photo 3
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InLine 51125T Network Card Photo 5
InLine 51125T Network Card Photo 6
InLine 51125T Network Card Photo 1
InLine 51125T Network Card Photo 2
InLine 51125T Network Card Photo 3
InLine 51125T Network Card Photo 4
InLine 51125T Network Card Photo 5
InLine 51125T Network Card Photo 6
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Short description

The InLine 51125T is an internal wired network card featuring a PCI Express host interface and an Ethernet interface, supporting a maximum data transfer rate of 2500 Mbit/s. Designed to enhance desktop computer connectivity, it ensures reliable high-speed network integration for professional and home office environments.
Warranty: 2 Years
SKU: 11683009
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Product information

Description

The InLine 51125T internal Ethernet network card is a wired PCI Express solution designed to deliver high-speed data transfer rates of up to 2500 Mbit/s. It is engineered to enhance desktop computer and workstation connectivity, providing a reliable and stable network integration for professional office environments, home setups, and data-intensive tasks.

Advantages

This internal network card significantly improves local network performance by supporting speeds up to 2.5 Gb/s over standard existing cabling infrastructure, eliminating the need for costly rewiring. Its hardware interface ensures seamless communication with the motherboard, while comprehensive standards compliance guarantees stable data flow, reduced latency, and efficient traffic management across demanding applications.

Suitable for

  • Connecting desktop computers to high-speed wired local area networks
  • Upgrading home office or professional workstation network capabilities
  • Data-intensive applications such as large file transfers and multimedia streaming
  • Environments requiring reliable 2.5 Gigabit Ethernet connectivity

When it may not be suitable

This internal network card is not compatible with mobile devices, laptops lacking available PCI Express expansion slots, or systems running unsupported operating systems. It is also unnecessary for basic setups where standard standard Gigabit or wireless connectivity already fully meets the user performance requirements.

Key specifications

  • Wired connectivity technology
  • PCI Express host interface
  • Ethernet network interface
  • Maximum data transfer rate of 2500 Mbit/s
  • Supported networking standards include IEEE 802.1p, IEEE 802.3az, IEEE 1588, IEEE 802.1ad, IEEE 1588v2, IEEE 802.3x, IEEE 1.as, IEEE 802.1Q, IEEE 802.3, IEEE 802.3u, IEEE 802.3bz, and IEEE 802.3ab

How to use

To install the network card, power off the computer, disconnect it from the power source, and open the computer case. Insert the card securely into an available PCI Express slot on the motherboard and fasten the bracket. Close the case, reconnect the power, turn on the system, and install the appropriate drivers for your operating system to begin utilizing the high-speed Ethernet connection.

What to consider before purchase

  • Ensure your computer motherboard has an available PCI Express slot
  • Verify that your operating system is compatible with the network card drivers
  • Check your current network switch or router to confirm it supports 2.5 Gigabit speeds to fully benefit from the card capabilities
Usage recommendations: To achieve optimal performance and stability, ensure that the card is securely seated in the PCIe slot and that up-to-date drivers are installed. Use certified Ethernet cables that meet the appropriate category specifications for high-speed wired networking.

Specifications

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
Ethernet
Host interface: Interface that enables a host controller to communicate with a driver.
PCI Express
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
2500 Mbit/s
Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
2 kg
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.1p, IEEE 802.3az, IEEE 1588, IEEE 802.1ad, IEEE 1588v2, IEEE 802.3x, IEEE 802.1as, IEEE 802.1Q, IEEE 802.3, IEEE 802.3u, IEEE 802.3bz, IEEE 802.3ab
All features
VLAN support: A Virtual Local Area Network (VLAN) consists of a group of computers and switches that can be physically distributed over different networks and buildings, but form one LAN on a logical level.
Yes
Component for: What this product is used as a part of (component for).
PC
Resource CD:
Yes
Package volume:
700 cm³
Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
CE, Federal Communications Commission (FCC), TÜV mark

Ports & interfaces

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
Ethernet
Host interface: Interface that enables a host controller to communicate with a driver.
PCI Express
Internal: The product is built in.
Yes
Ethernet LAN (RJ-45) ports: Number of Ethernet LAN (RJ-45) ports (connecting interfaces) in the device. Ethernet LAN (RJ-45) ports allow a computer to connect to the ethernet.
1
PCI version:
2.1

Bandwidth

Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
2500 Mbit/s

Network

Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.1p, IEEE 802.3az, IEEE 1588, IEEE 802.1ad, IEEE 1588v2, IEEE 802.3x, IEEE 802.1as, IEEE 802.1Q, IEEE 802.3, IEEE 802.3u, IEEE 802.3bz, IEEE 802.3ab
Chipset: Set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found in the motherboard of a computer. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance.
Realtek RTL8125B
Maximum operating distance: The maximum distance from which you can operate the device.
100 m
Jumbo frames support:
Yes
Jumbo frames:
16000

Performance

Wake-on-LAN ready:
Yes
Windows operating systems supported: Windows vesions wich can be used with the device.
Windows 8, Windows 11, Windows 10, Windows 7
Server operating systems supported:
Windows Server 2012, Windows Server 2012 R2, Windows Server 2008 R2, Windows Server 2016, Windows Server 2019, Windows Server 2008

Design

Country of origin: Country where the device is made. Aka Country of manufacture (COM).
Taiwan

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
2 kg
Package weight: Weight of the packaged product.
39 g
Height: The measurement of the product from head to foot or from base to top.
120 mm
Width: The measurement or extent of something from side to side.
85 mm
Depth: The distance from the front to the back of something.
1.07 mm
Package depth: The distance from the front to the back of the packaging.
150 mm
Package height: The distance from the top to the bottom of the packaging.
30 mm
Package width: The distance from one side of the packaging to the other.
140 mm

Operational conditions

Operating relative humidity (H-H):
0 - 90
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 70
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 70
Storage relative humidity (H-H):
0 - 90

Packaging content

Manual:
Yes
Mounting brackets included:
Yes

Other features

Dimensions (WxDxH): Dimensions of the product (Width x Depth x Height).
85 x 1.07 x 120

Description

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Customer questions

FAQ

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All InLine products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized InLine service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, interface, host interface, maximum data transfer rate, weight, networking standards, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.