FortiDDoS-1500E DDoS Protection Appliance - 10 port-pairs DDoS Defence Ports, including 8 pairs x 10 GE SFP+ or GE SFP and 2 pairs x 40 GE QSFP+ or 100 GE QSFP28, with 2-link optical bypass module used with SM DR/LR/ER/ZR (1310/15550nm) transceivers, 2x G