Cisco CWDM SFP 1470
Cisco CWDM SFP 1470 is a grey colored small form factor transceiver used for Gigabit Ethernet and 1 and 2Gbps fiber channel, this transceiver module works with single mode fiber using 1470nm wavelength, its max working distance is 120km.

Cisco CWDM SFP 1490
Cisco CWDM SFP 1490 is a small form SFP module used for Gigabit and 1 and 2Gbps fibre channel, it is with violet color to identify from related CWDM SFP.

Cisco CWDM SFP 1510
Cisco CWDM SFP 1510 is a small form transceiver used with Gigabit Ethernet and 1 and 2Gbps Fibre channels.

Cisco CWDM SFP 1530
Cisco CWDM SFP 1530 is a small form transceiver using duplex LC interface, it is with green color and used in Gigabit rate and 1 and 2Gbps fibre channels.

Cisco CWDM SFP 1550
Cisco CWDM SFP 1550 is a yellow colored transceiver module used for 1Gbps Ethernet and 1 and 2Gbps fibre channels. They are compliant to IEEE 802.3z 1000Base-X standards and Fibre Channel Draft Physical Interface Specification.

Cisco CWDM SFP 1570
Cisco CWDM SFP 1570 is an orange color SFP used in fibre channel and Gigabit Ethernet; it works with single mode fiber for a max 120km distance.

Cisco CWDM SFP 1590
Cisco CWDM SFP 1590 is a red colored small form transceiver used on 1000Base Ethernet or 1 and 2Gbps fibre channel. They are compliant to IEEE 1000Base-X, Fibre Channel Draft Physical Interface Specification and ITU-T G.694.2 CWDM grid.

Cisco CWDM SFP 1610
Cisco CWDM SFP 1610 is a small form factor transceiver with brown color, this product fit for the Gigabit Ethernet and 1/2Gbps fibre channels. They are hot swappable transceiver used on Cisco routers and switches.