The MSW-2X2-1240-1640 from Optosun technology is a Fiber Optic Switch with Insertion Loss K0.9 (Typ 0.5) dB, Operating Temperature 0 to 70 Degree C, Optical Power 25 (Typ 5 mW), Polarization Dependent Loss 0.1 dB, Storage Temperature -40 to 85 Degree C. More details for MSW-2X2-1240-1640 can be seen below.