handymenny ecco son finito su sta pagina https://en.avm.de/products/fritzbox/fritzbox-5530-fiber/ che dice:
Fiber optics up to 1000 Mbit/s for AON, GPON and XGS-PON
Network with 1 x 2.5 gigabit LAN and 2 x gigabit LAN
Interfaces
Wireless router with an SFP port for a FRITZ!SFP fiber optic module (AON and GPON included, ready for XGS-PON)
1 x 2.5 gigabit LAN port (IEEE 802.3bz standard, NBASE-T)
2 x 1 gigabit LAN ports
Wi-Fi 6 (5 GHz, 2.4 GHz)
Integrated DECT base station for up to six cordless telephones
1 a/b port (TAE/RJ11) for analog phones, answering machines and fax
Fiber optics
FRITZ!SFP AON
ITU-T G.652; IEEE 802.3ah-2004 1000BASE-BX10
LC/APC 8°
Wavelength: TX 1310 nm, RX 1480 to 1580 nm
Full duplex transmission
Transmitter power: -9 to -3 dBm
Reception range: -3 to -23 dBm
Range: 10 km
Support for SFF-8472
Class 1 laser
FRITZ!SFP GPON
Suitable for ITU-T G.984.2/984.5 (GPON)
LC/APC 8°
Wavelength: TX 1310 nm, RX 1490 nm (with filter)
Suitable for rogue detection
Transmitter power: 0.5 to 5 dBm
Reception range: -3 to -28 dBm
Range: 20 km
Support for SFF-8472
Class 1 laser
Quindi facendo un recap, interfaccia SFP a 1 G che però supporta XSG-PON, 1 porta ethernet a 2.5 G il resto a 1G, magari in futuro usciranno i moduli a 10, infatti sta scritto "ready for", non è specificato se lo slot per il modulo sia a 1 o 10 G