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SIM Card Internet Access
The TP-Link TL-MR6400 is designed to turn a SIM card into home Wi‑Fi. It uses a nano SIM slot and a built-in 4G LTE modem, so setup is as simple as inserting the SIM and switching it on.
That makes it useful where fixed broadband is unavailable or unreliable
Wireless And Wired Connectivity
The router provides up to 300 Mbps Wi‑Fi on the 2.4GHz band. TP-Link also says it can support up to 32 connected devices, making it suitable for a small household or office.
An Ethernet LAN/WAN port adds flexibility for wired use or fallback connections.
Signal And Practical Use
The TL-MR6400 includes two detachable antennas, which help with signal reception and coverage.
It is also described as easy to set up, with plug-and-play style installation and TP-Link Tether app support in some product materials. This keeps the router straightforward for everyday use.
Good For Backup Or Main Internet
Because it relies on a SIM card, the TL-MR6400 is useful as a primary connection in places without cable or fiber, or as a backup network during outages.
Its 4G LTE performance depends on carrier coverage and location, but the router itself is built to make mobile internet easy to share. For a no-fuss SIM router, it is a solid option.
The TP-Link TL-MR6400 is a 4G LTE wireless router with a SIM card slot that lets you share mobile internet over Wi‑Fi. It uses a nano SIM, so you can insert the card directly and begin using the router without a complex installation process. This makes it especially helpful for homes, shops, rentals, and rural areas where fixed broadband is limited.
For wireless performance, TP-Link lists speeds up to 300 Mbps on the 2.4GHz band. The router can share that connection with up to 32 devices, which is enough for a small family or workgroup. On the cellular side, supported 4G LTE download speeds reach up to 150 Mbps, depending on network conditions and carrier support.
The TL-MR6400 also includes a wired networking option through its Ethernet port. That gives you flexibility if you want to connect a desktop, smart TV, or another network device by cable. Two detachable antennas add to the router’s practicality by helping maintain more stable connectivity.
Overall, the TL-MR6400 is a straightforward SIM-based router aimed at users who want mobile broadband shared through Wi‑Fi. It is not a mesh system or a high-end fiber router, but it does its job well for basic home and backup networking. If you need an easy way to turn a SIM card into internet access for multiple devices, it fits that need well.
Short Features
Nano SIM slot.
4G LTE modem built in.
Up to 150 Mbps LTE download.
Up to 300 Mbps Wi‑Fi.
Up to 32 connected devices.
Ethernet LAN/WAN port.
Two detachable antennas.
Easy insert-and-go setup.
Suitable for home and office use.
Good backup internet router.
FAQs
It is used to share mobile internet from a SIM card over Wi‑Fi.tp-link+1
It uses a nano SIM card.
TP-Link lists up to 150 Mbps on 4G LTE and up to 300 Mbps on Wi‑Fi.service-provider.tp-link+1
It can share the connection with up to 32 devices.multitronic+1
Yes, it includes an Ethernet port for wired connectivity.
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