Your search for "FS-424D" revealed the following:
NEW Fortinet FS-424D-FPOE 400 Campus 24x 1GB PoE+ RJ45 2x 10GB SFP+ Switch
SKU: NSN-8889
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Fortinet FS-424D-POE 24x 1GB RJ45 (12x PoE+) 2x SFP+ Local Management Switch
SKU: NSN-8434
Condition: New
Shipping: Overnight Options
Warranty: 365 days