This eBay listing is for ONE Riverbed Steelhead NIC-005-4LX, 4-Port 1GB, LX Single Mode Fiber Interface, P/N 410-00046-01 Rev 2.0. Pulled from a working surplus appliance. Comes as shown and described. I will give it my own 30 day No DOA Warranty. Buyer pays $7 S/H via USPS Priority mail. Buy with confidence from Esoteric Specialties.