The SXLT2x2 from Sercalo Microtechnology is a Fiber Optic Switch with Insertion Loss 0.4 - 1.0 dB, Operating Temperature 0 to 70 Degree C, Polarization Dependent Loss 0.03 - 0.07 dB, Storage Temperature -40 to 70 Degree C, Wavelength 1240 - 1640 nm. More details for SXLT2x2 can be seen below.