Cisco速 XENPAK-10GB-ER+ compatible 10GBase-ER XENPAK transceiver (SMF, 1550nm, 40km, SC). A 100% Cisco速 compatible XENPAK transceiver that operates at 1550nm over single-mode fiber, with a maximum reach of 40km connected via a SC connector. This Cisco速 XENPAK transceiver is 100% compliant with its designed networking application, and is factory programmed with Cisco速 specific configuration data required for seamless networking integration. This XENPAK transceiver will initialize and perform identically to Cisco's transceiver and is built to meet or exceed Cisco's specifications, and comply with MSA (Multi-Source Agreement) standards. The actual part shipped may have a different part number, but will be functionally identical and 100% compatible. Trade Agreements Act (TAA) versions of this part are available.