MERCUSYS MW300RE 300 Mbps Wi-Fi Range Extender is designed to expand an existing 2.4 GHz Wi-Fi network into areas where the main router’s wireless signal is weak or unavailable. It supports wireless speeds of up to 300 Mbps and uses three external antennas with MIMO technology to help extend wireless coverage.
The MW300RE connects wirelessly to an existing Wi-Fi router and is designed for eliminating Wi-Fi dead zones in homes and small offices. Setup can be completed using the router’s WPS button and the extender’s WPS button, while a multicolor signal indicator helps identify a suitable placement location.
The extender supports IEEE 802.11n, 802.11g, and 802.11b on the 2.4–2.5 GHz band. It features three external antennas, a compact wall-mounted design, and a Reset/WPS button for setup and device management.
Compatible hardware versions can also be managed through the MERCUSYS app on supported Android and iOS devices. MERCUSYS currently lists the MW300RE V3 and V4 on its product pages, with app compatibility dependent on the hardware version and firmware requirements.
Key Features
- Up to 300 Mbps wireless speed
- 2.4 GHz wireless operation
- Supports IEEE 802.11n/g/b
- 3 external antennas
- MIMO technology
- Range Extender mode
- WPS button for quick setup
- Multicolor smart signal indicator
- Compact wall-mounted design
- MERCUSYS app support on compatible hardware and firmware
- WPA-PSK/WPA2-PSK wireless security
Buyer Use Case
Best For: Homes, apartments, and small offices where the existing Wi-Fi router does not provide reliable 2.4 GHz coverage in certain rooms or areas.
The MW300RE is suitable for extending Wi-Fi to locations such as bedrooms, offices, corridors, or other areas with weak wireless coverage, using the existing router rather than replacing it.
Specifications
Brand: MERCUSYS
Model: MW300RE
Product Type: 300 Mbps Wi-Fi Range Extender
Wireless Standards: IEEE 802.11n, 802.11g, 802.11b
Frequency: 2.4–2.5 GHz
Maximum Wireless Speed: Up to 300 Mbps
Antenna Type: 3× External Antennas
Technology: MIMO
Transmission Power: <20 dBm
Wireless Security: WPA-PSK/WPA2-PSK
Button: Reset/WPS Button
Dimensions: 101 × 74.8 × 75.8 mm
Installation: Wall Mount
Operating Temperature: 0°C–40°C
Operating Humidity: 10%–90%, non-condensing
Storage Temperature: -40°C–70°C
Storage Humidity: 5%–90%, non-condensing
Certifications: CE, RoHS
Package Contents: MW300RE 300 Mbps Wi-Fi Range Extender, Quick Installation Guide
Important Speed Limitation
Speed Limitation: The advertised 300 Mbps is the maximum wireless signal rate derived from IEEE 802.11 specifications, not a guaranteed real-world data-transfer speed. Actual throughput and coverage can vary due to building materials, obstacles, wireless interference, network traffic, extender placement, network overhead, and the capabilities and condition of connected devices.
The MW300RE operates on the 2.4 GHz band only, so it does not provide a separate 5 GHz wireless band.
Compatibility
The MERCUSYS MW300RE is designed to work with existing Wi-Fi routers using compatible 2.4 GHz 802.11n/g/b wireless standards. MERCUSYS states that the extender can work with almost any Wi-Fi router.
Compatible client devices can include:
- Smartphones and tablets
- Laptops and desktop computers with 2.4 GHz Wi-Fi
- Smart TVs
- Streaming devices
- Printers
- Smart home and IoT devices
Hardware/firmware limitation: MERCUSYS lists the MW300RE in multiple hardware versions, including V3 and V4. MERCUSYS app compatibility depends on the specific hardware version and the required firmware version.






















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