The Teradek Serv 4K streams a camera's 12G-SDI or HDMI 2.0 feed in 4K HDR for real-time viewing on set or around the world. Local streaming reaches multiple devices on set at once, even without an internet connection, and cloud streaming shares the picture with an unlimited number of devices on macOS, iOS, Android or a web browser.

Picture and encoding

It encodes HEVC or H.264, with one stream at up to 4K DCI p60 in 4:2:2 10-bit, and supports HDR with DCI-P3 and PQ 2084. Inputs are 12G/6G/3G/HD/SD-SDI on BNC and HDMI 2.0. There's a 12G-SDI output and a built-in scaler and deinterlacer. Colour correction covers CDL, 1D LUTs and 33x33x33 3D LUTs, with 10-bit colour.

Sharing and networks

Viewers watch in the Teradek TV app on iOS, Android and macOS, and cloud services include Frame.io, Sony Ci and PIX. Streams go out over SRT, AirMix or Teradek bonding, which combines up to seven networks at once: Ethernet, Wi-Fi, a USB cellular modem and up to four iOS or Android phones. It has Gigabit Ethernet and two powered USB-C host ports that take 3G and 4G modems, and its 2.4 GHz and 5 GHz Wi-Fi uses two supplied 2 dBi antennas.

Recording and audio

Recordings go to a full-size SD or SDXC card, USB storage or NFS. A 3.5 mm input takes stereo line-level or microphone audio with adjustable gain, encoded as AAC-LC, and there's a 3.5 mm stereo headphone output.

Control, build and power

It can be set up from a web interface, an iOS/Android app, the OLED status display with its navigation buttons or Teradek Core for cloud-based device management. This 2024 version of the Serv 4K has a fan updated from the earlier model for cooling efficiency. It also has 256-bit encryption. The milled aluminium body weighs 476 g and mounts horizontally or vertically on its 1/4-20 holes. It takes 6 to 28 V DC through a 2-pin circular locking connector and comes with a 30 W AC adapter, an 18 in 2-pin to P-Tap cable and a 10 in BNC to BNC SDI cable.