Wireless USB Adapter MW300UH

Name: Wireless USB Adapter Mercusys MW300UH MW300UH
Brand: MERCUSYS
SKU: 3494794
Price: 7.49 EUR
Availability: InStock

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Wireless USB Adapter Mercusys MW300UH

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Short description

The Mercusys MW300UH is a high-gain wireless USB adapter with a maximum data transfer rate of 300 Mbps. It supports Wi-Fi 4 (802.11n) on the 2.4 GHz band, providing reliable connectivity for your devices. With USB power, it is easy to set up and use, making it ideal for enhancing your wireless network performance.

Available at price 7.49 €: 1 pcs.

Total available for order: 49 pcs.

Warranty: 2 Years

SKU: 3494794

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

01.07.2026 {{selectedOffer.officeDeliveryString}}

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

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From 4.99 € (Weight: 0.21 kg)

Parcel couriers

Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa

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From 1.99 €

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Payment Methods:

Bank transfer, Bank cards on-line, Apple Pay, Google Pay

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Product information

Description

The Mercusys MW300UH is a wireless USB adapter that provides up to 300 Mbps on the 2.4 GHz band using IEEE 802.11n/g/b standards. Equipped with two external 5 dBi high-gain antennas and a desktop cable design, the MW300UH improves signal reception and lets you place the adapter closer to the router for more stable wireless connectivity. The adapter is USB-powered and compatible with Windows 10/8.1/8/7/XP.

Advantages

Two high-gain 5 dBi external antennas increase signal strength and range. The cable-mounted desktop design reduces signal blocking from the computer chassis and allows flexible placement for better reception. USB power eliminates the need for an external power source. Simple installation is supported via the included driver CD.

Suitable for

Desktop or laptop computers lacking built-in Wi‑Fi
Extending Wi‑Fi coverage in small apartments or home offices
Basic web browsing, email, and streaming on the 2.4 GHz band

Key specifications

Model: Mercusys MW300UH (MPN: MW300UH)
Maximum data transfer rate: 300 Mbit/s
Wireless standards: IEEE 802.11n/g/b (Wi‑Fi 4)
Frequency band: 2.4 GHz
Antennas: Two external 5 dBi high‑gain antennas
Interface: USB (WLAN host interface)
Colour: White
Compatibility: Windows 10/8.1/8/7/XP

How to use

Connect the MW300UH to an available USB port on your computer and position the adapter using the attached cable so the antennas face toward the router. Install the driver and setup utility from the supplied CD or download the latest driver from the manufacturer’s website if necessary. Use the setup utility to select your 2.4 GHz network and enter the Wi‑Fi password to complete the connection.

Usage recommendations

Place the adapter a short distance from the router and avoid placing it behind metal objects or inside closed computer cases. For best performance on congested networks, position the antennas vertically and keep firmware/drivers updated.

Specifications

Connectivity technology:: Wired & Wireless
Interface:: WLAN
Host interface:: USB
Maximum data transfer rate:: 300 Mbit/s
Networking standards:: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b
Product colour:: White

All features

Wi-Fi standards:: Wi-Fi 4 (802.11n), 802.11g, 802.11b
Component for:: PC/Laptop
Harmonized System (HS) code:: 85176990
Sustainability certificates:: RoHS
Antenna design:: External

Ports & interfaces

Connectivity technology:: Wired & Wireless
Interface:: WLAN
Host interface:: USB
Internal:: No
USB version:: 2.0

Bandwidth

Maximum data transfer rate:: 300 Mbit/s

Network

Networking standards:: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b

Wireless LAN features

Wi-Fi:: Yes
Wi-Fi band:: Single-band (2.4 GHz)
Top Wi-Fi 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:: WPA, WPA2-PSK, WPA2, WPA-PSK, WEP
Windows operating systems supported:: 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:: White

Weight & dimensions

Package weight:: 220 g
Height:: 201.1 mm
Width:: 113.2 mm
Depth:: 100.5 mm
Package depth:: 134.5 mm
Package height:: 41.5 mm
Package width:: 282.5 mm

Power

USB powered:: Yes

Operational conditions

Operating relative humidity (H-H):: 10 - 90
Storage temperature (T-T):: -40 - 70
Operating temperature (T-T):: 0 - 40
Storage relative humidity (H-H):: 5 - 90

Certificates

Certification:: CE

Packaging content

Cables included:: USB

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Instructions

mmo_71536037_1559897361_5961_3692.pdf

mercusys-MW300UH-3494794.pdf

Description

Instructions

mmo_71536037_1559897361_5961_3692.pdf

mercusys-MW300UH-3494794.pdf

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Warehouse	Stock	Delivery to the store	Store Price
WH155	1	01.07.2026	7.49 € Best price
BT5	3	Wednesday Best delivery	10.49 €
EU85	17	01.07.2026	11.49 €
EU2	8	Thursday	12.49 €
WH355	2	06.07.2026	12.99 €
EU58	8	09.07.2026	17.99 €
EU57	10	30.06.2026	17.99 €

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7.49 €

Stock: 1

Delivery Date: 01.07.2026

Warehouse: WH155

10.49 €

Stock: 3

Delivery Date: Wednesday Best delivery

Warehouse: BT5

11.49 €

Stock: 17

Delivery Date: 01.07.2026

Warehouse: EU85

12.49 €

Stock: 8

Delivery Date: Thursday

Warehouse: EU2

12.99 €

Stock: 2

Delivery Date: 06.07.2026

Warehouse: WH355

17.99 €

Stock: 8

Delivery Date: 09.07.2026

Warehouse: EU58

17.99 €

Stock: 10

Delivery Date: 30.06.2026

Warehouse: EU57

Customer reviews

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Customer questions

FAQ

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

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 01.07.2026 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 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 Wireless USB Adapter MW300UH?

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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