MFR. Name: Cisco | MFR#: XENPAK-10GB-SR=
Cisco 10GBASE-SR XENPAK Transceiver Module - 1 x 10GBase-SR - XENPAK
The Cisco 10GBASE XENPAK module offers customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.