I am considering some replacement equipment for some End of Life Firewalls. The appliance I am interested in is the Cisco Firepower 4115 Next Gen Fire Wall. In the quote statement, the vendor included the part FPR4k-SSD400- with a description: Firepower 4000 series 400GB Solid State Drive for FPR-4125. Is the FPR4k-SSD400- compatible with the 4115 appliance or should I be concerned with the Description statement: FPR-4125 detail? From what I have read it is no concern, but the - at the end of FPR4k-SSD400- has me slightly concerned.