BYTECC OP-SP104 1 to 4 Optical Audio Splitter Specifications: Input port 1 x Toslink (Optical Fiber) Output ports 4 x Toslink (Optical Fiber) Power Supply 5V/1A DC Dimensions (mm) 80(W) x 50(D) x 25(H) Operating Temperature Operating from 0 Degrees C ~ 40 Degrees C