Maxlink ML-S5531-20-H3C is a 1.25G SFP WDM module with a Tx 1550 / Rx 1310 wavelength, a single LC connector, and a maximum transmission distance of 20km over single-mode optical fiber. The SFP module supports monitoring (DDM).
The LC connector in the SFP module uses UPC polishing.
H3C Compatibility
The modules are compatible with 3Com/HP/H3C A-series switches (A5120/5500/5800/5900/7500/10500 and others), as well as with H3C S-series switches.