Brand: FINISAR Part Number: FTCD4313E2PCLFB1 FTCD4543E2PCM Form Type: QSFP-DD Speed: 400GBase Reach: 2KM Wavelength: 1310nm Transceiver Type: FR4 Connector: LC Media: Parallel SMF DOM: DOM PRODUCT FAMILY: Optical Transceivers Speed Description: QDD-400Gigabit Environment: 0 to 70C Voltage Supply: 3.135V ~ 3.465V Country of origin: CHINA In addition to Finisar FTCD4313E2PCLFB1 FTCD4543E2PCM , Liyuan Tech supply a wide range of other Finisar transceivers. If you have any need or interest, please feel free to send inquiry to global@chn-liyuan.com