Blackmagic Design ATEM Talkback Converter 4K, 4K Signal Converter / Extender, Provides up to 8 cameras with SDI talkback using embedded audio channels 15 and 16 as found on Blackmagic Studio Cameras and ATEM Camera Converters, Supports 12G-SDI for all SD, HD and Ultra HD formats up to 2160p/60 and offers BNC connectors for each camera as well as an optional fibre jack, Allows the connection of an additional SFP module to extend camera transmission for longer distances, With push-to-talk talk buttons, Supports common aviation headsets with 6.35 mm TRS headphone jack and 5.23 mm TRS microphone jack, Balanced XLR microphone jack on front panel, Integrated speakers, Compatible operating systems: Mac 10.11 El Capitan, Mac 10.12 Sierra or higher / Windows 8.1 and 10, Power supply: 100- 240 V AC input with redundant 12 - 31 V DC input (IEC power cable not included), Power consumption: 60 W, Dimensions: 482 (19"") x 44 (1U) x 160 mm, Weight: 2.3 kg@+*Note:* SFP fibre optic modules are not included in the scope of delivery@+@+*Inputs:*@+@+, Programme input: 1x 10-bit SD/HD/Ultra HD 4K auto-switching programme input from mixer, including tally data with audio embedded in 16 channels., Camera inputs: 8x 10-bit SD/HD/Ultra HD 4K auto-switching outputs with 16 channels of embedded audio, Fibre optic video input: 8 mono-mode SD/HD/Ultra HD 4K auto-switching inputs with LC socket, Fibre audio input: 8 mono-mode fibre camera audio inputs with LC jack (channels 1 and 2 are for camera sound, Channels 15 and 16 are for intercom sound).@+*Outputs:*@+@+, Programme output: 1x 10-bit SD/HD/Ultra HD 4K auto-switching programme output with loop-through for interfacing to another ATEM Talkback Converter 4K type converter., Camera output: 8x 10-bit SD/HD/Ultra HD 4K auto-switching outputs with 16 channels of embedded audio, Fibre optic video output: 8 mono-mode SD/HD/Ultra HD 4K outputs, auto-switching, with LC socket, Fibre-optic audio output: 8 mono-mode fibre outputs with LC socket (channels 1 and 2 are for camera sound, channels 15 and 16 are for intercom sound)