TP-Link TL-MR6400 4G LTE Router, N300 Wi-Fi

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Product guide

TP-Link TL-MR6400 4G LTE Router, N300 Wi-Fi

N300: The TP-Link TL-MR6400 is a 4G LTE router with a SIM slot and single-band 2.4 GHz Wi-Fi. It is designed to share a mobile broadband connection around a home, with Ethernet connectivity and a listed app control method.

At a glance

SIM-slot 4G LTE connectivity with claimed download speeds of up to 150 Mbps and upload speeds of 50 Mbps.
Single-band 2.4 GHz Wi-Fi is listed at up to 300 Mbps.
The listing claims support for up to 32 wireless devices at once.
A WAN/LAN port is described as supporting standard broadband as a backup connection.
The listed kit includes a power adapter, Ethernet cable and quick installation guide.

Price

£59.99Save 36%

Reference price: ~~£93.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

SIM-based 4G connectivity provides an alternative to a fixed broadband connection where mobile coverage is suitable.
The claimed 300 Mbps 2.4 GHz Wi-Fi and support for up to 32 devices suit basic household sharing needs.
An Ethernet connection and described WAN/LAN backup support provide wired connectivity and a possible fixed-broadband failover option.

Cons

Wi-Fi is single-band 2.4 GHz, with no dual-band or newer Wi-Fi standard listed. This limits the stated wireless specification compared with dual-band routers.

Technical specifications

20 specifications

Identity
Brand	TP-Link
Model	TL MR6400

Connectivity and controls
Wireless connection listed	Wi-Fi, Ethernet
Control methods listed	App
Wireless standard	802.11n
Wi-Fi generation	Wi-Fi 4
Wi-Fi band	2.4 GHz
Wi-Fi data transfer rate	300 Megabits Per Second
4G LTE download speed	up to 150 Mbps
4G LTE upload speed	50 Mbps
Number of ports	4
Devices supported simultaneously	Up to 32 devices simultaneously

Dimensions and installation
Weight listed	50 Grams
Dimensions	20.2L x 14.5W x 3.4H centimetres
Antenna type	Fixed
Voltage	9 Volts

Other listed details
Compatible devices	Laptop, Personal Computer, Smart Television, Smartphone, Tablet
Operating systems listed	8 . 1,Chrome,Linux,Mac Os,Vista,Windows,Windows 7
Security protocol listed	WPS
Warranty listed	3 year manufacturer

What to know before buying

Listing details to confirm

The product is described as both portable and a home router, but the provided details list a 9 Volts power supply and no battery. The listing gives up to 150 Mbps LTE download, 50 Mbps LTE upload and up to 300 Mbps Wi-Fi, which are different connection rates rather than guaranteed real-world speeds. The stated 4-port count does not specify the exact WAN/LAN port arrangement, while the feature text describes a WAN/LAN port. Confirm the intended setup and current carrier coverage before relying on it for a particular connection.

What’s in the box

Included

TL-MR6400 4G LTE router
Power adapter
RJ45 Ethernet cable
Quick installation guide

Who is it for?

A good fit for

Households or small offices seeking SIM-based 4G internet sharing where LTE reception is adequate.
Renters, students or holiday-home users wanting an alternative connection to standard fixed broadband.
Users who need basic 2.4 GHz Wi-Fi and wired Ethernet connections.

Less suited to

Buyers who require a battery-powered hotspot for untethered travel.
Users specifically seeking dual-band Wi-Fi or a newer wireless standard.
Anyone needing assured reception, speed or uninterrupted connectivity, as customer feedback reports mixed experiences.

TP-Link TL-MR6400 4G LTE Router, N300 Wi-Fi · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 5,132 ratings

5 stars67%67%
4 stars16%16%
3 stars7%7%
2 stars3%3%
1 star7%7%

Customer feedback describes easy setup and good Wi-Fi coverage across multiple rooms, while experiences with speed, reception, connectivity and reliability are mixed. Some customers report dropped connections or weak reception, and opinions on value are divided. This matters for a SIM-based router because actual mobile performance depends on reception at the intended location, and the listed speed figures are manufacturer claims rather than an assurance of a particular result.

Positive themes

Customers report straightforward setup and useful Wi-Fi coverage across multiple rooms.

Mixed feedback

Reports about signal strength, speed, connectivity and reliability vary, including accounts of both stable use and dropped connections.
Opinions on value for money are divided.

Frequently asked questions

Does the TL-MR6400 use a SIM card for internet access?

Yes. The product title and feature listing describe a built-in SIM card slot for 4G LTE connectivity. No SIM card or data plan is identified in the supplied package list.

What Wi-Fi does this router provide?

The listing specifies single-band 2.4 GHz Wi-Fi using 802.11n, with a stated maximum rate of 300 Mbps.

Can it connect to fixed broadband as well as 4G?

The listing describes a WAN/LAN port for standard broadband connections and backup use. The precise port arrangement is not given, so check that it suits your intended setup.

Is it battery-powered for travel?

A power adapter and 9 Volts supply are listed, but no battery is specified. Despite the portable wording in the title, the supplied details do not establish battery-powered operation.