The TELEKOM Glasfaser Modem 2b fiber optic modem is an external modem (ONT) from Telekom for connecting a WAN router to a Telekom fiber optic connection.

• Single-mode interface: 1 × LC/APC 8°.
• RJ-45 Ethernet WAN/LAN port: 1 × (2.5 Gbit/s).
• GPON technology, laser class 1.
• Maximum delivered speed: up to 2 Gbit/s.
• Device dimensions: 115 × 115 × 30 mm.
• Weight: approximately 118–120 g.
• Power supply: via adapter (MS-V0500R120-012H0-DE) 12 V / 0.5 A (6 W), standby ≈ 3.4 W.
• Purpose: indoor use.

The package usually includes the Glasfaser Modem 2b, power adapter, Ethernet cable, optical cable, and quick start/user instructions. It is compatible with Telekom Speedport models and any router with an Ethernet WAN port.