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:: Fiber optic router

Suitable routers / modems for your FTTH connection


That for fiber optic access special hardware required is, of course, of course. After all, technically speaking, there are worlds between DSL and FTTH. However, there are differences depending on the connection type or configuration standard. In the following we want to show which fiber optic routers or modems come into question or are asked by the providers. We also shed light on what else retail has to offer. If Your PC is suitable for fiber optics at all or is prepared, we clarify at the end of this page. Here we go!


1. The thing about the connection ...

There are three different configurations and connection types where more or less “fiber optics” is behind it. Depending on this, you will need a certain type of router. The info box in the right sidebar, with the heading "Difference between fiber optic Internet and DSL and VDSL", shows a graphic that compares the types of fiber optic expansion. With conventional VDSL, the "glazing" is already over at the roadside (cable distributor). A conventional, powerful VDSL router such as the Fritz! Box 7590 is sufficient.

FTTH & FTTB: "Real" fiber optic Internet is only available if the connection is connected using one of these two methods. With the FTTB, the fiber optic cables run into the basement of a single or multi-family house. There the termination of the optical lines takes place at the house transfer point (Gf-AP). This then feeds one or more fiber optic connection sockets to which the fiber optic modem or GF router is connected. At least that's the simplified representation. For more details, take a look at our special on GF house connections.

Some providers, such as Deutsche Telekom, are also expanding FTTH access. This is where the fiber optic cables directly to the apartment of the customer, without any interruption with copper cables. The fiber optic subscriber connection socket is then located directly in the customer rooms. This is a kind of equivalent to the old TAE socket. The Fiber optic modem (also ONT), in turn, converts the optical signals back into electrical ones on site.

2. Fiber optic router or modem?

You will find two common variants on the installation graphic above. In the left scenario (still the rule) an extra GF modem is connected in front of the router. This is because there aren't that many real GF routers out there yet. Therefore, the GF-Modem first takes over the "translation" from optical to electrical and is then coupled with a conventional WiFi router. This then regulates the distribution to all end devices used via LAN or WLAN. In principle, you could leave it with the modem, as long as only 1-2 end devices are to be supplied with Internet via LAN ...



Example: fiber optic modem from Deutsche Telekom:


The more elegant way but would be natural if the router itself has a fiber optic input (right side of the infographic). Then the upstream connection of an extra modem can be saved and thus space + electricity. However, the selection is still very limited (see further below), so that the extra modem variant currently predominates.

GF router FritzBox 5530 from AVM with fiber connection on the left:


3. Suitable routers for fiber optic customers

Regardless of whether you opt for an original GF router (or get it from the provider) or switch a device behind the GF modem. The The model should always meet the latest technical standards for the high-performance fiber tariffs. In concrete terms, this means: On the one hand, it provides several Gigabit LAN ports on the back - ideally at least 4. In addition, it must be at least WLAN according to 802.11ac (WIFI 5) or even better the latest 802.11ax (WIFI 6) support. Only then can the performance be reliably made available throughout the house with tariffs of over 500 Mbit / s. Older models that only offer WLAN N (WIFI 4) or 100 MBit LAN connections are not at all suitable and would act as a real handbrake.

3.1 real fiber optic router (no additional modem required)

Tip caution trap: There are older models, such as the FritzBox 5490, which are only designed for active fiber optic connections (AON), which are rarely installed in this country (but in Austria). German customers need routers that support passive access (GPON).
As already explained, the top discipline is when the router device itself already has a fiber connection and modem and you can save yourself a third-party device. Fortunately, there is slowly a growing selection of devices, even if the selection is still well below ten.

We have selected the most promising models for you below. However, some of them will only appear in the course of the year. Here is an overview of the (soon) available fiber optic routers in Germany:

ManufacturermodelData rates up toSupportWLAN up toavailable from / sinceour ratingDetails
??Speedbox 4 Smart +2.5 Gbit / sGPONWIFI 6Q1 / 20215/5*info*
AVMFritz! Box 55501 GBit / sAON and GPONWIFI 6approx.Q2 / 20215/5*info*
AVMFritz! Box 55301 GBit / sAON and GPONWIFI 6approx.Q2 / 20215/5*info*
AVMFritz! Box 54911 GBit / sGPONWIFI 5Q3 / 20193/5*info*
AVMFritzBox 54901 GBit / sAON (not for DE!)WIFI 5Late 20162/5*info*
TP-LinkTX-VG15301 GBit / sGPONWIFI 4Q3 / 20182/5

Unfortunately that was it! There are still a handful of other models, but they are either no longer available in this country or are completely out of date. For example the Zyxel FSG2200HNU or Turris Mod D. Real FTTH is still more the exception than the rule, which is also reflected in the variety of devices.

Tip 1) Telekom: Speedport Smart 4 Plus

As with DSL or VDSL tariffs, Telekom offers a special fiber-optic router for fiber tariffs - the Speedport Smart 4 Plus, the successor to the Smart 3. The "Smart 4" already has a GF modem integrated and In addition, masters all other important landline standards. So ADSL, VDSL including (super) vectoring and Gfast. The router can be bought online here at www.telekom.de. Simply enter "speedport smart 4" in the search on the Telekom website.

The model is of course suitable for magenta TV. Here are the most important functions and features of the Speedport Smart 4+.

important key data:


  • Router for download rates up to the gigabit range
  • GPON port up to 2.5 GBit
  • WLAN with support of 802.11 a / b / g / n / ac and ax on 2.4 and 5 GHz
  • WLAN data rate up to 4800 Mbit (!)
  • 3 high-performance Ethernet LAN connections with 1 gigabit
  • 1 Gigabit Link LAN port
  • 2 TAE ports for telephones on the RJ14 adapter
  • 1 x USB 2.0
  • DECT base station for up to 5 telephones
  • integrated firewall, WPA2 / WPA3

Tip 2) FritzBox 5530 & 5550

Anyone who chooses a provider other than Telekom or does not want a Speedport router can also fall back on a model from AVM. The latest (release probably Q1 / 2021) versions are the FritzBox 5530 and 5550. Both are basically identical, except that the former is designed exclusively for fiber optics. The 5550 also supports G.fast, which is often used in apartment buildings, for example, to bring gigabit speed from the basement to the apartments via the old telephone network without having to laboriously relocate fiber optics.

important key data:


  • Fiber optic connection types: G-PON, XGS-PON or AON
  • WLAN with support of 802.11 a / b / g / n / ac and ax (WIFI 6) on 2.4 and 5 GHz
  • WLAN data rate up to 2400 Mbit via 5 GHz + 600 Mbit via 2.4 GHz
  • 2 x Ethernet LAN connections with 1 gigabit
  • 1 x high-performance 2.5 Gigabit LAN port
  • 1 x TAE ports for telephones on the RJ14 adapter
  • DECT base station for up to 6 telephones
  • integrated firewall, WPA2 / WPA3


3.2 Models for downstream connection behind a fiber optic modem

If your own fiber optic provider does not yet provide its customers with an original fiber router, you need a powerful high-speed router behind the fiber modem for your home network via LAN or WLAN. In the following, we will first introduce the currently two best routers for fiber optic connections that have none have their own fiber connection.

Tip 1) Speedport Pro (+): "Fiberglass favorite"

In February 2019, Deutsche Telekom introduced a new "super router" that overshadows pretty much everything that had come before. Ideal not only for fiber optic customers! The Speedport Pro is suitable for all Telekom access types. So for FTTH / B, VDSL (also supervectoring), DSL or hybrid (DSL + LTE). The special thing about it is that it can combine cellular and landline networks, which is also known as "hybrid Internet". Special hybrid tariffs are then required for this.

A fiber optic modem is not integrated, which means that it has to be connected separately. Of course, the Pro supports WLAN ac, but with up to 9600 Mbit per second. This is made possible by an 8x8 multi-user MIMO. The same model has been available as a "plus" version since the end of 2020. This is structurally identical, only that WLAN ax (WIFI 6) is supported here, i.e. even faster wireless LAN.

There are 4 Gigabit LAN ports on the back. The following picture shows the Speedport Pro on a fiber optic modem from Deutsche Telekom. The model costs 6.95 € per month with a contract or 9.95 (plus) surcharge. Or a one-time whopping 399.99 euros. Can be ordered with and without tariff here at www.telekom.de.






AVM Fritzbox 7530ax

Contrary to the trend of the last few years at AVM, the 7590 showed itself for the first time again with a "lying" design concept, which is also found in the newer 7530ax. Up to the 7580, the rectangular, standing design language still dominated. The device provides four Gigabit LAN ports. A highlight of the 7530 is without question the WLAN module, which, thanks to the multi-user MIMO and 802.11ax standard, can deliver up to 1800 Mbit / s in the 5 GHz band + 600 Mbit on 2.4 GHz (gross). With the broadband standards, the device masters the new supervectoring for the first time. DSL and VDSL are of course also possible. The ideal router for fiber optic customers is available for around 170 euros, like here on Amazon.

FritzBox 7530 | Image: AVM


Have you discovered another router?

Then always bring it on. We look forward to your letters and tips!

4. PC and laptop ready for FTTH / FTTB?

Not only the router has to be suitable for fiber optic internet. Your PC, tablet or laptop should also meet certain criteria. Otherwise, in the worst case scenario, you will surf with the handbrake firmly on and pay for a service that cannot be used at all. Fortunately, most of the measures don't cost much. Usually, the purchase of a new network card including LAN cable is enough for 15-30 euros. For a long time it has been stated in the general terms and conditions of Deutsche Telekom that the achievable data rate also depends on the "end devices [...] used by the customer (router, PC including its operating system and other software). [...]

Here is a short checklist for your PC:

  • Network card or on-board connection (motherboard) is gigabit capable
  • there is therefore at least 1 gigabit LAN port available and free,
  • Connection of all LAN devices with cables> = CAT.6
  • WLAN: all end devices including routers should be at least WLAN-AC (WIFI 5)
    supported | "WLAN-AX"(WIFI 6),
  • if possible Windows 10 (at least Windows 7, even if out of date),
  • If possible, at least a dual-core CPU not older than 2010
  • if possible at least 4-8 GB RAM or higher,
  • as current Windows updates and drivers as possible installed,
  • and of course the matching fiber optic router

Then your system should be at least halfway equipped for the high data rates. In principle, however, the computer should not be older than 5 years. It is best to consult your trusted hardware dealer again if you are not entirely sure.


:: Difference between fiber optic Internet and DSL and VDSL

This illustration explains in detail the difference between the three popular broadband technologies. Click to enlarge!


What does fiber optic cost and what are the different tariffs? Our tariff comparison gives a quick overview and helps you save. to the tariff comparison


FTTH customers need a powerful WLAN router that is connected behind the fiber optic modem. Our overview shows all possible models for high-speed tariffs. Show devices