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header-product Ethernet Adapter D-Link DUB-E250 USB-C to 2.5G
40.49 €

Ethernet Adapter D-Link DUB-E250 USB-C to 2.5G

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Ethernet Adapter D-Link DUB-E250 USB-C to 2.5G

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Ethernet Adapter D-Link DUB-E250 USB-C to 2.5G

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Short description

The D-Link DUB-E250 is a USB-C to 2.5G Ethernet adapter that provides wired connectivity with a maximum data transfer rate of 2500 Mbit/s. It is USB powered and features a sleek white design, making it a perfect addition to your tech setup. Ideal for high-speed internet access, this adapter is compatible with various devices equipped with USB Type-C ports.
Available at price 40.49 €: 50 pcs.
Total available for order: 303 pcs.
Warranty: 2 Years
SKU: 3956096
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
24.11.2026 {{selectedOffer.officeDeliveryString}}
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27.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.08 kg)
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Product information

Description

The D-Link DUB-E250 USB-C to 2.5G Ethernet adapter upgrades laptops and desktops with a USB Type-C port to multi-gigabit wired connectivity. Compact and USB-powered, it delivers up to 2500 Mbit/s in a white, pocketable design and is compatible with existing Fast Ethernet and Gigabit networks.

Advantages

The adapter provides 2.5 Gbps Ethernet speeds over a single USB-C connection, more than twice the throughput of standard Gigabit Ethernet. It includes a preloaded driver for instant plug-and-play installation, a compact portable form factor, and dynamic power management that reduces power draw when traffic is light, idle, or the cable is unplugged.

Suitable for

  • Ultra-thin laptops and notebooks with USB-C / Thunderbolt 3 ports and no built-in Ethernet
  • Desktops needing a quick multi-gigabit upgrade without opening the case
  • Transferring large files, backups to NAS or servers, and other network-intensive tasks

Key specifications

  • Model: D-Link DUB-E250
  • Interface: USB Type-C host; Ethernet network interface
  • Maximum data transfer rate: 2500 Mbit/s (2.5 Gbps)
  • Power: USB powered (draws power from USB-C port)
  • Networking standards: IEEE 802.3, 802.3u, 802.3ab, 802.3bz, 802.3x, 802.3az, 802.1Q, 802.1p
  • Colour: White
  • Weight: 0.0285 kg

How to use

Plug the DUB-E250 into an available USB-C port on your laptop or desktop. The adapter contains a built-in driver that installs automatically, enabling immediate connection to your router, switch, or network at up to 2.5 Gbps. Connect an Ethernet cable from the adapter to your network device and verify link/activity via your operating system’s network settings.

Usage recommendations

For best performance use with multi-gigabit-capable switches, routers, and cabling (CAT5e or higher recommended). The adapter is backward compatible with Gigabit and Fast Ethernet networks. To conserve battery on portable devices, rely on the adapter’s dynamic power management when traffic is light or when idle.

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.
USB Type-C
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.
0.0285 kg
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.3x, IEEE 802.3u, IEEE 802.3bz, IEEE 802.3az, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3, IEEE 802.3ab
Product colour: The colour e.g. red, blue, green, black, white.
White
All features
Harmonized System (HS) code:
85176990

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.
USB Type-C
Internal: The product is built in.
No
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
USB version: Universal Serial Bus (USB) is an industry standard developed in the mid-1990s that defines the interface used for connection, communication and power supply between computers and electronic devices. Every new version - for example 1.1, 2.0, 3.0 - is much faster than the previous one.
2.0/3.2 Gen 1 (3.1 Gen 1)

Bandwidth

Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
2500 Mbit/s
Full duplex: A full-duplex system allows communication in both directions, and unlike half-duplex, allows this to happen simultaneously.
Yes

Network

Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.3x, IEEE 802.3u, IEEE 802.3bz, IEEE 802.3az, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3, IEEE 802.3ab
Ethernet LAN: An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.
Yes
Flow control support:
Yes
Ethernet LAN data rates: The different speed levels of the Ethernet LAN connection.
100, 2500, 1000, 10
Ethernet interface type:
25 Gigabit Ethernet
VLAN tagging:
Yes

Performance

Plug and Play: Indicates whether this product supports is "plug and play". Plug and play is hardware or software that, after being installed ("plugged in"), can immediately be used ("played with"), as opposed to hardware or software which requires configuration.
Yes
Cable length: How long the cable is.
0.16 m
Hot-Plug support: Device has hot-plug capability, which means that user can replace system components without shutting down the system.
Yes
Auto MDIX IEEE:
Yes
Windows operating systems supported: Windows vesions wich can be used with the device.
Windows 8 x64, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 7 Home Basic x64, Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 IOT Core, Windows 7 Home Premium, Windows 7 Home Basic, Windows 7 Enterprise x64, Windows 7 Enterprise, Windows 10 Pro x64, Windows 10 Home x64, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 7
Mac operating systems supported: Mac operating systems e.g. OS X can be used with the device.
Mac OS X 10.14 Mojave, Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.9 Mavericks, Mac OS X 10.8 Mountain Lion, Mac OS X 10.7 Lion, Mac OS X 10.6 Snow Leopard, Mac OS X 10.15 Catalina

Design

Product colour: The colour e.g. red, blue, green, black, white.
White

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.
0.0285 kg
Height: The measurement of the product from head to foot or from base to top.
15 mm
Width: The measurement or extent of something from side to side.
21.5 mm
Depth: The distance from the front to the back of something.
53 mm

Power

USB powered: The device can be powered via a USB connection.
Yes
Power consumption:
250 mA

Operational conditions

Operating relative humidity (H-H):
10 - 85
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
10 - 70
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
10 - 45
Storage relative humidity (H-H):
5 - 90

Certificates

Certification:
CE, FCC, IC

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Product comparison

The Ethernet Adapter D-Link DUB-E250 USB-C to 2.5G is compared with several wired network adapters from D-Link, i-tec, Trendnet, and StarTech. All of these devices provide wired network connectivity via USB or USB Type-C, are USB-powered, and are designed to deliver reliable internet access. The main differences lie in their maximum data transfer rates, host interfaces, product colors, and supported networking standards.

⚙️ The table below compares characteristics such as the host interface, maximum data transfer rate, product color, weight, and the practical significance of these parameters for real-world use.

ParameterD-Link DUB-E250D-Link DUB-1312/Ei-tec Metal USB-C 2.5GbpsTrendnet TUC-ET2GStarTech USB31000S2HStarTech.com US1GC30WPractical significance
Host interfaceUSB Type-CUSBUSB Type-CUSB Type-CUSBUSB Type-CDetermines compatibility with modern laptops and tablets featuring Type-C ports versus traditional USB ports.
Maximum data rate2500 Mbit/s1000 Mbit/s2500 Mbit/s2500 Mbit/s5000 Mbit/s5000 Mbit/sAdapters supporting 2500 and 5000 Mbit/s are better suited for high-speed local networks and fast broadband connections.
ColourWhiteBlackGreyBlackBlackWhiteAllows matching the adapter color to your workspace setup or device aesthetics.
Weight0.0285 kg0.0285 kg0.035 kg0.03 kg0.0259 kg0.024 kgThe lightweight design across all options ensures high portability for on-the-go use.

◎ The table below shows which product is more suitable for different user needs and practical use cases.

Use caseRecommended productWhy
Using modern USB Type-C devices with 2.5G network speedsEthernet Adapter D-Link DUB-E250 USB-C to 2.5GDelivers a 2.5 Gbit/s connection speed through a modern Type-C interface with a clean white design.
Connecting to older USB ports and standard gigabit networksD-Link DUB-1312/EIdeal for standard networks up to 1000 Mbit/s using a traditional USB connection.
Achieving maximum possible data transfer rates via USB Type-CStarTech.com US1GC30W WhiteSupports speeds up to 5000 Mbit/s with a modern Type-C connection for demanding network environments.
Ethernet Adapter D-Link DUB-E250 USB-C to 2.5G is best suited for users with modern USB Type-C devices who require fast wired internet connectivity up to 2.5 Gbit/s. Compared to standard 1 Gbit/s alternatives or older USB-based adapters, it provides an optimal blend of high-speed capability and a modern connection interface.
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Stock data
Warehouse Stock Delivery to the store Store Price
EU3 50 24.11.2026 Best delivery
40.49 € Best price
WH94 100 24.11.2026 Best delivery
41.99 €
EU85 2 24.11.2026 Best delivery
43.49 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 50 08.12.2026
44.49 €
40.49 €
Stock: 50
Delivery Date: 24.11.2026 Best delivery
Warehouse: EU3
41.99 €
Stock: 100
Delivery Date: 24.11.2026 Best delivery
Warehouse: WH94
43.49 €
Stock: 2
Delivery Date: 24.11.2026 Best delivery
Warehouse: EU85
46.49 €
Stock: 50
Delivery Date: 24.11.2026 Best delivery
Warehouse: WH357
46.99 €
Stock: 50
Delivery Date: 24.11.2026 Best delivery
Warehouse: WH320
53.99 €
Stock: 1
Delivery Date: 24.11.2026 Best delivery
Warehouse: EU16
Available only for legal entities
44.49 €
Stock: 50
Delivery Date: 08.12.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Ethernet Adapter D-Link DUB-E250 cost, and is it available for purchase?

The price is 40.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 303 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 24.11.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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 D-Link 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 D-Link 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, product colour, 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.

Where can I download the instructions for Ethernet Adapter D-Link DUB-E250?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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