Digital Audio Extender: allows digital optical(Toslink) or digital coaxial (S/PDIF) audio signal to be transmitted over Cat 5E/Cat 6 cable. | Experience the highest quality of audio with the following supported formats: Dolby Digital, DTS 5.1, DTS-HD, LPCM | Sampling Rate: Coax(SPDIF), Optical(Toslink) , Up to 96kHz, Max. Distance:500 Foot, Data Transmission Rate:12.8 Mb/s. | Digital Audio Extender transmitted over cat5e/6, so just need to plug in Transmitter unit to be powered.Power input 12VDC with Indicator Red Led. | Extender built in surge suppressor to protect audio equipment against damaging voltage spikes. All products include a 1-year manufacturer warranty and free lifetime technical support. Contact information available on our seller page.

RJ45 Coupler Usage: extender is ideal for extending ethernet connection by connecting 2 short network cables together. | Plug and play, no drivers are required. | Safe and Secure : With nickel plated contacts and easy snap-in retaining clip, the coupler ensure a secure and corrosion free connection. | RJ45 inline jack coupler meets Category 6 performance, compatible with TIA/EIA 568-C.2 standard and RoHS certification. | Female to Female Ethernet coupler jack is compatible with Cat7, Cat6, Cat5e, Cat5 network.

4 Port 3.5mm Stereo Audio Switcher: Bidirectional switching Splitter Audio Sharing active speakers and headphones | Method 1: Connect 4 audios to (IN/OUT)A/B/C/D, use the 4 channel switch knob to get an output; | Method 2: Connect an audio to IN/OUT, select an audio output between (IN/OUT)A/B/C/D; (The output can be switched between speakers and headphones) | 4 channel switch knobs, fully isolated independent circuit, make sure that each signal is not affected by the other three channels. | Plug and play; No External Power Required; Won't affect the sound quality! | Note: Does Not Support Microphone.