For sale is ONE (1) used SFP-RR-W-LC fiber connector in very good condition. Because we have a quantity of these, appearances may vary, but condition is guaranteed to be better or equal to pictured sample. Serial numbers are unique to each unit sold. They may be different from one depicted in the photos.
When the WDM (Wavelength Division Multiplexing) module is installed, the two input signals are multiplexed onto a single optical fiber.