Its performance in high-speed gating at internal or external frequencies up to 100 MHz by far surpasses the performance of existing detectors. Photons can be detected with probability up to 25 % at 1550 nm, while maintaining the dark count rate at low levels. A timing resolution as low as 250 ps can be achieved. The system provides adjustable delays, adjustable gate duration from 0.5 ns to 25 ns and adjustable dead time up to 100 µs. For applications requiring an asynchronous detection scheme, the system can operate in free-running mode with a detection probability of 2.5 % up to 10 %. A peculiar effort has been made for providing a practical user interface. All the user parameters are intuitively adjusted with direct access buttons (Detector, Inputs/Outputs, Display, System, Setups and Acquisition). The system provides universal compatibility with external scientific equipments, inputs and outputs are compatible with most electrical standards (NIM, LVTTL/LVCMOS, NECL, PECL3.3V and PECL5V). Inputs Aux1 and Aux2 are linked to a two-channel event counter and a coincidence counter as an auxiliary independent block. Built around advanced embedded-PC and FPGA, the system allows remote control, connection of external monitor and keyboard, data save on internal hard drive, data export on USB key and setups saving.