DWDM-SFP-3977 Cisco SFP: NetworkTigers offers this SFP. This Cisco DWDM-SFP-3977 SFP we sell is tech tested. We can overnight this Cisco DWDM-SFP-3977 SFP to your office.
The Cisco DWDM-SFP-3977 transceiver is a member of the Cisco SFP family of optical transceivers. These 1GB SFP transceiver modules give the user a wide variety of connectivity options for various transport applications.
Cisco DWDM-SFP-3977: DWDM SFP 1539.77 nm SFP (100 GHz ITU grid).