This is a brand-name requirement for 180 Cisco 1000Mbps Multi-Mode Rugged SFPs (GLC-SX-MM-RGD). The posting was amended as of September 21 to update Attachment 4: Provisions and Clauses by removing inapplicable clauses and adding 52.222-90 Addressing DEI Discrimination by Federal Contractors, plus covered defense telecommunications equipment/services representations and prohibitions 252.204-7016, 252.204-7017, and 252.204-7018. The amendment also corrects formatting in the Combo document and makes minor clarifications to the Instructions to Offerors and Evaluation Factors. No other solicitation changes were made.