Model Number: ADMX0402M1 Brand Name: ASK Key Specifications/Special Features: This SPDIF 4x2 Matrix could put the four sets of SPDIF output signal source and two SPDIF input device connected. It can be easily split or switched between four SPDIF signal and two SPDIF signal receiving equipment.FEATURESFour ways of optical fiber signal input split or switch to two sets of SPDIF signal receiving device. Support signal retimingUsed optical fiber cable loss less the 0.2Db/m, Output distance is up to 40m.The input control can through R/M and also can directly press the button.Support last time working state memory when power off.Over-voltage protection can prevent the damage caused by connecting unmatched power adapter to the machine, if the light for standby indication flashed, it shows that the output voltage from the power adaptor is too high and the adaptor needs to be changed.LED status indication, it can tell us the working state of the device very easily.No loss of qualityInstalls in minutesNeed DC5V/1A power supply

The accessories with the machines lists：

1、5V Power Adaptor
2、Operation Manual
3、Remote-control unit