1 x USB 3.0 port (capable of exceeding 1 Gbps for file transfers or 3G/LTE backup dongles) alongside 1 x USB 2.0 port.
Here’s a structured for the ZTE F6640 (a GPON/XPON ONT/ONU typically used in fiber broadband deployments). This is based on common specs for ZTE’s F600-series devices, adapted for the F6640 model (assuming it’s a 4‑port Gigabit + voice + Wi-Fi unit). If you have a specific variant (e.g., F6640P, F6640V2), some details may differ. zte f6640
Up to 2400+ Mbps (Max aggregate 3.75 Gbps wireless throughput). 220 mm x 35 mm x 155 mm; Net weight: ~600 grams. Advanced Wireless Features & Performance Enhancements 4x4 MU-MIMO and OFDMA Technology 1 x USB 3