Technical specifications


  • 1 x cable port (DOCSIS 3.1, backward compatible with EuroDOCSIS 3.0)
  • Wi-Fi 7, compatible with the 802.11a/g/n/ac/ax/be wireless standards
  • 1 x 2.5 gigabit LAN port
  • 4 x 1 gigabit LAN port
  • 1 x USB 2.0 port for printers and storage media
  • 1 a/b port (TAE/RJ11) for an analog telephone, fax or answering machine
  • Integrated DECT base station for up to six cordless phones and for Smart Home devices (DECT ULE)
  • Integrated Smart Home gateway for integrating LED lights and other devices via Zigbee 3.0

Cable / network

  • Wireless router with integrated cable modem up to 6 Gbit/s, compliant with the latest DOCSIS 3.1 transmission standard (backward compatible with EuroDOCSIS/DOCSIS 3.0)
  • High-performance wireless router with firewall/NAT, DHCP server, DynDNS client, UPnP
  • Supports IPv6
  • MyFRITZ! – access your FRITZ!Box securely, no matter where you are
  • Comprehensive parental controls with time budget, youth protection module, filter lists
  • Full-band capture tuner
  • Stateful Packet Inspection Firewall with port sharing
  • Secure remote access, LAN-to-LAN linkup and dial-in to the company network with VPN (WireGuard and IPSec)
  • Security wizard with diagnostic tool
  • Joint use of existing internet connection via LAN or Wi-Fi
  • Wake on LAN via the internet


  • Wi-Fi 7 up to 2880 Mbit/s (gross, 5 GHz) and 720 Mbit/s (gross, 2.4 GHz)
  • Mesh Wi-Fi – simply combine several FRITZ! products into one intelligent system and extend the home network
  • Compatible with the 802.11a/g/n/ac/ax/be wireless standards
  • 2 x 2 MIMO
  • Dual-band Wi-Fi for simultaneous operation in the 2.4 and 5 GHz bands
  • Secure Wi-Fi network encryption upon delivery with WPA3/WPA2
  • AVM Stick & Surf: Browse the internet securely and without any cables
  • Wi-Fi Protected Setup (WPS)
  • Wi-Fi guest access – secure surfing for friends and visitors
  • Wi-Fi auto channel: Automated search for an interference-free Wi-Fi channel
  • Wi-Fi eco mode for optimum performance at minimum power consumption

Smart Home / Media

  • Smart Home features for energy, heating, lighting and more
  • Supports up to 50 Smart Home devices (DECT ULE)
  • Integrates up to 40 LED lights and other devices from third-party manufacturers that support the Zigbee standard (Zigbee compatibility list)
  • Control your FRITZ! Smart Home via the FRITZ!Box interface, FRITZ!Fon, FRITZ!DECT smart switch or FRITZ!App Smart Home
  • Streams four free-to-air digital TV channels simultaneously from the cable connection to your PC, smartphone, tablet or FRITZ!App TV
  • FRITZ!NAS: memory shared by all data in the home network
  • Simply and securely share files with friends and family
  • Media server - store and share your music, photos and videos (DLNA/UPnP AV)
  • Also supports online storage, web radio and podcasts
  • Ideal for Internet TV, video and music streaming


  • Telephone system for the cable connection
  • Voice transmission encrypted upon delivery
  • Port for an analog phone, answering machine or fax
  • Supports HD telephony for natural and clear sound
  • DECT Eco: Frequency channel switches off for maximum ergonomics
  • Five integrated answering machines including email forwarding (voice-to-mail)
  • Manage telephone contacts locally or online (Google, Apple etc.)
  • Fax function including email forwarding (fax-to-mail)
  • Call diversion, internal calls (intercom), three-way conferencing, call transfer
  • Call blocking, alarm, baby monitor, VIP calls and Do not Disturb
  • Internet telephony SIP-compliant in accordance with RFC 3261
  • Register IP telephones (LAN/Wi-Fi) SIP-compliant
  • FRITZ!App Fon for landline calls via your smartphone


  • "": Clear, easy-to-use browser-based user interface
  • User interface optimized for smartphones and tablets (responsive design)
  • Handy FRITZ!Apps for your smartphone: MyFRITZ!App for FRITZ! convenience on the go, and FRITZ!App WLAN, the clever Wi-Fi helper
  • Help function with full-text search
  • Push service by email for information about events in the home network
  • Security wizard with diagnostic tool
  • Free updates for new features and security, auto-updates if desired

Package contents

  • FRITZ!Box 6670 Cable
  • Power adapter with 1.5 m long cable
  • 1.5 meter-long coaxial cable
  • 1.5 meter-long LAN cable
  • Installation guide

Device properties

  • Dimensions (w x h x d) approx. 254 x 191 x 63 mm
  • Medium power consumption: 10 – 11 W


  • 5-year manufacturer’s warranty

Article number

  • 20003047