The FSX-series is a versatile, turn-key and compact femtosecond laser perfectly matched for a variety of applications, ranging from biophotonics to material science, quantum computing and basic R&D. With its multiple ultra low-noise, wavelength tunable synchronized laser output options, it also enables applications like coherent Raman imaging (CARS, SRS) or multi-spectral excitation 2-photon imaging. The FSX can be equipped with various options like built-in dispersion compensation, fast power modulation, hollow-core fiber delivery and non-linear frequency conversion modules. It can also drive multiple experiments at once, thus saving costs and space. Air-cooling allows sustained 24/7 operation. Temperature fluctuations between 18 °C and 28 °C have no influence on the performance, mitigating concerns about misalignment over time and operating environment.