Brand: Ciena Part Number: XCVR-S40V55 HECI: COUIA7HPAA Form Type: SFP+ Speed: 10GBase Reach: 40km Wavelength: 1550nm Transceiver Type: ER Connector: LC Media: SMF DOM: DOM Speed Description: 10-Gigabit Environment: 0 to 85C Country of origin: China In addition to Ciena XCVR-S40V55 , Liyuan Tech supply a wide range of other Ciena transceivers. If you have any need or interest, please feel free to send inquiry to global@chn-liyuan.com