 In addition to this, CFP modules deliver 100 Gbit/s Ethernet suitable for high speed Internet backbone connections.Shortwave WDM uses vertical-cavity surface-emitting laser (VCSEL) transceivers with four wavelengths in the 846 to 953 nm range over single OM5 fiber, or 2-fiber connectivity for OM3/OM4 fiber.See also transponders (optical communications) for different functional views on the meaning of optical transponders.