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header-product Mercusys MW300UH 300Mbps High Gain Wireless USB Adapter Wi-Fi 4 Single-band 2.4 GHz with External Antennas White
10.49 €

Mercusys MW300UH 300Mbps High Gain Wireless USB Adapter Wi-Fi 4 Single-band 2.4 GHz with External Antennas White

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Mercusys MW300UH Wireless USB Adapter Photo 1
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Mercusys MW300UH 300Mbps High Gain Wireless USB Adapter Wi-Fi 4 Single-band 2.4 GHz with External Antennas White

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Short description

Mercusys MW300UH high gain wireless USB adapter delivers reliable Wi-Fi 4 connectivity with speeds up to 300 Mbps on the 2.4 GHz single band. Featuring a USB interface and high-gain external antennas, this white network adapter ensures stable wireless network coverage for desktop computers and laptops. Ideal for everyday web browsing, streaming, and online tasks.
Available at price 10.49 €: 3 pcs.
Total available for order: 90 pcs.
Warranty: 2 Years
SKU: 3494794
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
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11.11.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.22 kg)
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Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
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Product information

Description

The Mercusys MW300UH 300Mbps High Gain Wireless USB Adapter Wi-Fi 4 Single-band 2.4 GHz with External Antennas White is designed to provide reliable and stable network connectivity for desktop computers and laptops. Featuring a USB interface and equipped with external high-gain antennas, this network adapter ensures consistent wireless coverage throughout your workspace. It delivers data transfer rates up to 300 Mbit/s, making it a practical solution for upgrading or adding wireless capabilities to your computer.

Advantages

This wireless USB adapter features two high-gain external antennas that significantly improve signal reception and transmission performance, helping to maintain a stable connection even at a distance from the router. The desktop-friendly design with an included cable allows you to position the adapter for optimal signal reception while avoiding physical obstructions. With support for 2x2 MIMO technology, users can reliably access high-speed wireless networks for daily tasks. Setup is straightforward thanks to the included user-friendly interface.

Suitable for

  • Connecting desktop computers and laptops to a wireless network
  • Everyday web browsing, checking emails, and online reading
  • Standard definition media streaming and online video playback
  • Establishing a stable Wi-Fi connection in home offices or workspaces

When it may not be suitable

This adapter operates exclusively on the 2.4 GHz single band and supports Wi-Fi 4 standards, meaning it is not designed for high-bandwidth activities such as 4K streaming or heavy multi-player gaming. It may not meet the performance requirements of users looking for gigabit speeds or access to the less congested 5 GHz frequency band.

Key specifications

  • Maximum data transfer rate of 300 Mbit/s
  • Single-band 2.4 GHz frequency support
  • Wi-Fi 4 standards including IEEE 802.11n, IEEE 802.11g, and IEEE 802.11b
  • USB host interface with wired and wireless connectivity technology
  • Two high-gain external antennas
  • White product color

How to use

To use the adapter, connect it to an available USB port on your desktop computer or laptop using the provided cable. Position the device on your desk to achieve the best possible signal reception from your wireless router. Install the necessary drivers using the supplied software interface. Once installation is complete, select your wireless network from your operating system's network menu, enter the password, and connect to the internet.

What to consider before purchase

  • Verify that your computer operating system is compatible with the adapter
  • Confirm that your network environment operates on the 2.4 GHz frequency band
  • Consider whether a single-band Wi-Fi 4 connection meets your current internet usage needs

Usage recommendations

For optimal performance, place the adapter away from large metal objects and other electronic devices that may cause signal interference. Ensure the external antennas are adjusted upright to maximize coverage and maintain a stable connection with your wireless router.

Specifications

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired & Wireless
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.
WLAN
Host interface: Interface that enables a host controller to communicate with a driver.
USB
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
300 Mbit/s
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b
Product colour: The colour e.g. red, blue, green, black, white.
White
All features
Wi-Fi standards: The type of wireless local area network (LAN). It can be ad-hoc, where units in a network communicate peer-to-peer, or Infrastructure, where units communicate with each other via an access point A LAN interconnects computers in a small area e.g. home, school or office.
Wi-Fi 4 (802.11n), 802.11g, 802.11b
Component for: What this product is used as a part of (component for).
PC/Laptop
Harmonized System (HS) code:
85176990
Antenna design:
External
Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS

Ports & interfaces

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired & Wireless
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.
WLAN
Host interface: Interface that enables a host controller to communicate with a driver.
USB
Internal: The product is built in.
No
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

Bandwidth

Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
300 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 802.11n, IEEE 802.11g, IEEE 802.11b

Wireless LAN features

Wi-Fi: Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.
Yes
Wi-Fi band: The frequency bands the product features.
Single-band (2.4 GHz)
Top Wi-Fi standard: Connection of this device is done via Wi-Fi in a high standard.
Wi-Fi 4 (802.11n)
WLAN data transfer rates supported:
54, 300, 11

Antenna

Gain:
5 dBi
Antenna:
Yes
Frequency range:
2.4 - 2.4835
Antennas quantity:
2

Performance

Security algorithms: Security algorithms are used to provide authentication, cipher key generation, integrity and radio link privacy to users on mobile networks. The security algorithms supported are the ones that can be used with this product.
WPA, WPA2-PSK, WPA2, WPA-PSK, WEP
Windows operating systems supported: Windows vesions wich can be used with the device.
Windows XP, Windows 8.1 x64, Windows 8.1, Windows 8 x64, Windows 8, Windows 7 x64, Windows 7, Windows 10, Windows 10 x64

Design

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

Weight & dimensions

Package weight: Weight of the packaged product.
220 g
Height: The measurement of the product from head to foot or from base to top.
201.1 mm
Width: The measurement or extent of something from side to side.
113.2 mm
Depth: The distance from the front to the back of something.
100.5 mm
Package depth: The distance from the front to the back of the packaging.
134.5 mm
Package height: The distance from the top to the bottom of the packaging.
41.5 mm
Package width: The distance from one side of the packaging to the other.
282.5 mm

Power

USB powered: The device can be powered via a USB connection.
Yes

Operational conditions

Operating relative humidity (H-H):
10 - 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 - 40
Storage relative humidity (H-H):
5 - 90

Certificates

Certification:
CE

Packaging content

Cables included:
USB

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Stock data
Warehouse Stock Delivery to the store Store Price
BT5 3 Friday Best delivery
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10.49 € Best price
WH115 7 19.11.2026
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EU85 20 19.11.2026
11.49 €
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10.49 €
Stock: 3
Delivery Date: Friday Best delivery
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Delivery Date: 19.11.2026
Warehouse: WH115
11.49 €
Stock: 20
Delivery Date: 19.11.2026
Warehouse: EU85
12.49 €
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13.49 €
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Delivery Date: 17.11.2026
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Customer reviews

Customer questions

FAQ

How much does the Mercusys MW300UH Wireless USB Adapter cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 90 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 Friday 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: Cash payment, 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 MERCUSYS 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 MERCUSYS 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, 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 Mercusys MW300UH Wireless USB Adapter?

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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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.