QSFP 4002 IR4 QSFP+ 40G IR4 optical module, single mode, CWDM 4 aggregate 10G channels, 2Km product series_miller brightpath The furcation tube contains an The furcation tube contains an inner pull string for easy fiber installation The Type 39 FastCat› Core Alignment Fusion splicer is the industry's first splicer to feature a Dual Automatic Heater System featuring auto start heater and auto start splice functions making the FastCat the fastest splicer available today It uses 4 CWDM 10G lasers running 1271~1331nm and combining them in a built in mux demux Form factor SFP Speed 40Gb s Optical connector dual LC Operating distance 2Km Power single 3