QSFP-40G-SR4 CISCO NETWORK TRANSCEIVER QSFP+ – LC 40GBPS FOR POWEREDGE T430, C6420, FC640, M640, R430, R440, R530, R540, R630, R640, R6415, R730, R740, R740xd, R7415, R7425, R940, T440, T640 VJW01 407-BBOZ 0VJW01 QSFP-40G-SR4