Check the listing for details. IXIA CFP-TO-QSFP+ DUAL INTERFACE ADAPTER MODULE 948-0023. Condition: Used. Listed at 1299.99 USD. CFP-to-QSFP+ Dual Interface Adapter Module CFP-to-QSFP+ Dual-Port Interface Adapter Module. A pluggable, 2-port unit that converts an Ixia Xcellon-Lava CFP MSA port interface to 2-ports of pluggable 40GE QSFP+ for fiber or copper cable assemblies or standalone transceivers.