The Lancom XS-6128QF 10G stackable managed fibre aggregation switch is ideal for small and medium enterprise networks as a high-performance distribution base for subordinate access switches and offers the highest operational efficiency and reliability. 10G fibre aggregation switch 16 x SFP+ ports 1/10 Gb/s 4 x SFP+ / 4 mGbE combo downlink ports (SFP+ 1/10 Gb/s resp. 1/2.5/5/10 Gb/s Ethernet) 2 x QSFP+ / 4 x SFP28 FleX uplink ports (1/40 Gb/s resp. 10/25 Gb/s) 4 x SFP-DD stacking ports (25/50 Gb/s) Up to 28 concurrent ports Redundant hot-swappable PSU and 2 hot-swappable fans for maximum reliability Full layer 3 functionality: VRRP, DHCP, static and policy-based dynamic routing via OSPF v2/v3 and BGP4 Front-to-back airflow for optimal cooling in 19" racks SD-LAN for quick and easy configuration via the LANCOM Management Cloud