Round evaluation PCB for optical bench applications with a pin socket to plug any KETEK SiPM. It is our general purpose evaluation PCB suitable for most applications. It features a low pass filter in the bias supply line. The DC coupled signal is read out via a resistive tap at a load resistor of 51 Ω. Suitable for all kind of applications like e.g. single photon counting, energy measurements with scintillators, biophotonics, pulsed light measurements. Can also be used as a replacement for photomultiplier tubes.