New : Available in 5G

High-speed internet with Data Box

Looking for an alternative to a fixed internet connection? Data Box is the solution for you! The easiest high-speed connection, now available with 5G.

Data Box

Enjoy the new 5G "Data Box" for €409 instead of €509.*


The benefits

High-speed internet

Whether you’re in a dead spot or have connection problems, Data Box offers both fixed and mobile internet solutions, with 5G high-speed internet for all your devices (smartphone, tablet, computer, etc.).

Plug in, insert, enjoy

No need for a technician and no waiting time. Up to 64 devices can be connected, either by Wi-Fi (wireless solution), or with an Ethernet cable. 

Unlimited with no commitment

Unlimited access from €70/month, offering up to 500Mbit/s download and 250Mbit/s upload speeds. Data Box is available without any commitment, or with a 12-month contract.

No need to change habits

Data Box can be used in the same way as a fixed internet connection: watch videos and research online, browse social networks, share photos/videos, etc.

Compare plans

Rates, commitments and data limits: choose the plan that’s right for you!

Data Box 200GB

12-month plan



200 GB

Data Box Unlimited

12-month plan




Data Box 200GB

No commitment



200 GB

Data Box Unlimited

No commitment




Order Data Box

No need to get up!

Just call the freephone number 8002 8004 and have the equipment sent to your home.

But you can also visit your usual Espace POST.

Money back guarantee

Try your Data Box for 15 days. Not satisfied?

Return your equipment for a refund.

The equipment at a glance

  • Price of the new 5G "Data Box" in Espace POST

If you want an internet connection that does not use Wi-Fi, then Ethernet cables are available for purchase in our shops.

Setting up your Data Box in four steps

The installation is very simple, follow the 4 following steps:

  1. Insert the SIM card in the chosen slot in the back of the Data Box

  2. Screw the antennas provided to the back of the device or replace them with external antennas (optional)

  3. Connect your Data Box to the sector

  4. Configure your Data Box from the user interface

Configure your Data Box in five steps

Just follow these five steps:

  1. Connect to the “FRITZ!Box 6850 XX” Wi-Fi network with a PC, tablet or smartphone.
    The password can be found on the sticker on the back of the device under “Wi-Fi password”.

  2. Then, connect to the Data Box interface with a web browser via the address or IP address The password can be found on the sticker under “FRITZ!Box password”.The configuration assistant will be launched.

  3. Enter the PIN when requested by the assistant.

  4. Select “POST LUXEMBOURG” in the list of operators and follow the on-screen instructions.

  5. The Data Box is operational. You can then personalise your equipment settings (Wi-FI network name, etc.) from the same interface.


Download the MyFRITZ!App for free and get easy and secure access to your FRITZ!Box and your home network, whether you're at home or on the go.

Answers to your questions

No, Data Box is limited to the Luxembourg domestic network and cannot be used for roaming.

Data Box is not the ideal solution for gaming. BAMBOO, also from POST, is much more suitable.

For a comprehensive package that includes TV (+ internet and landline), visit to see all of the packages that could meet your needs.

Data Box related products


Want a reliable, secure internet connection throughout your home with special access for your guests? Then check out POP WiFi+, the smart WiFi that adapts to suit your needs.


1. Customers can trial the Data Box package with no commitment for 15 calendar days from the subscription date. If they are not completely satisfied, customers can terminate the contract free of charge at the end of the trial period to receive a full refund of the subscription fees paid. Customers will not be reimbursed for usage beyond the limit set for the plan during the trial period. If customers have bought a 5G router from POST during the trial period, then they may obtain a refund on condition that they return the equipment in its box, undamaged, at the end of the trial period. Customers will not be reimbursed for any usage beyond the limit set for the plan during the trial period.

2. The tariff applicable for the month of subscription is calculated pro rata based on the number of days remaining between the subscription date and the last day of the month in question. Terminations will be processed by the deadlines set in the General Terms & Conditions of Sale / Special Terms & Conditions for Mobile Phones and the last day of the month in question.Usage is blocked for all types of Roaming and Voice communications (outgoing and incoming, voice, data, SMS and MMS) in the package.

Domestic data traffic: data communications from a POST mobile network. 1 MB = 1024 KB. Offer valid in Luxembourg only, subject to coverage and compatible equipment. Depending on the capacity of the compatible equipment and the frequency used by POST, theoretical maximum download speed of 500 Mb/s for 5G. Theoretical maximum upload speed of 250Mb/s for 5G compatible equipment. Within areas covered by POST’s GSM/GPRS/3G/4G/4G+/5G networks. More information on speeds can be found in the Net Neutrality document.

Voice calls are not possible with Data Box packages. SMS can be sent with Data Box packages using the administration interface of the 5G router or any other mobile device. When an SMS is sent to more than one recipient, the SMS will be charged for each recipient. It is free to receive SMS on the POST mobile network or a foreign mobile network.

In the event of continuously high use of bandwidth (e.g. peer-to-peer or downloading) that could saturate the network in a given area and disrupt other POST users, customers will be notified of their unreasonable usage. If they continue despite this notification, customers are informed that their line may be suspended.

The Data Box service is available in Luxembourg only.

* Promotional offer valid until 30 June 2024: the new 5G Data Box for €409 instead of €509.

Do you have any other questions? 

Call us free of charge on 8002 8004 or +352 2424 8004 for international calls, 24/7.

Or make an appointment in Espace POST:

Espace POST

Find your closest Espace POST.