This NetAPP X6558-R6 compatible 40GBase-CU QSFP+ Transceiver operates over Passive Twinax, with a maximum reach of 2m, built to meet or exceed the OEM's specifications, and comply with MSA (Multi-Source Agreement) standards. All products are 100% functionally tested, and are guaranteed compatible. Our Transceivers (GBIC, SFP, SFP+, X2, XFP and XENPAK) are 100% compliant with their designed networking application, and are factory programed with OEM specific configuration data required for seamles