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header-product Wireless USB Adapter Mercusys MW300UH
11.49 €

Wireless USB Adapter Mercusys MW300UH

Wireless USB Adapter MW300UH Photo 1
Wireless USB Adapter MW300UH Photo 2
Wireless USB Adapter MW300UH Photo 1
Wireless USB Adapter MW300UH Photo 2
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Wireless USB Adapter Mercusys MW300UH

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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 11.49 €: 11 pcs.
Total available for order: 77 pcs.
Warranty: 3 Years
SKU: 3494794
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
11.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
14.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.21 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
14.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
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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: 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
Sustainability certificates:
RoHS
Antenna design:
External

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
WH115 10 11.08.2026
11.49 €
EU85 11 11.08.2026
11.49 €
EU2 6 Friday Best delivery
12.49 €
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11.49 €
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Delivery Date: 11.08.2026
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Delivery Date: Friday Best delivery
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13.99 €
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Warehouse: EU57

Customer reviews

Customer questions

FAQ

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

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 77 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 11.08.2026 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.
warranty
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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