Juniper Networks SRX3600 Fan Tray With 10 Fans Does Not Include Air Filter SRX3600-FAN-C 750-021599.Model Number: SRX3600-FAN-CPart Number: 750-021599Compatible Part Numbers: 750-024599 COUCAGZBACCompatible Models: SRX3600Features:- Fan tray containing 10 fans- Located in the rear of the services gateway that installs vertically to the right of the card cage- The fan tray is hot-insertable and hot-removable- Three speeds: low, intermediate, and high.