Prism 855 Prism Flex 855 4K 10bit HEVC/AVC 12G-SDI/HDMI Encoder

Teradek SKU: 10-2855
No reviews

Sale price$3,490.00


Users were first introduced to Teradek's multi-tool for IP video with the best selling Prism Rack Unit. Now, we've introduced the Prism features you love into a more compact design. Prism Flex is our portable H.264/H.265 encoder that allows you to stream to any destination in up to 4KHD. Its compact, multi-I/O, low-power design can fit into compact spaces - making it easy to integrate into any live production workspace and workflow. Simply place it on a table, camera, or wedged between your video switcher and audio mixer.

Prism Flex is designed to perform in mission-critical scenarios where reliable, color-accurate, and low latency point-to-point streaming is needed. This includes live production companies, broadcasters, filmmakers, megachurches, and large corporations.

With its feature-dense design, it's easy to see why Prism is trusted by top brands like Netflix, NASA, NBC Universal, Technicolor, BBC, and USA Today for mission-critical video delivery.

• Prism Flex's extensive feature set gives you the highest quality on a single device
• 4K Encoding/Decoding. Live stream with cutting-edge image quality. 10-bit, 4:2:2 offers a color-accurate picture for virtual viewers
• HEVC + AVC. Get better visual quality at half the bitrate
• SRT, RTMP(S), MPEG-TS. Send streams to every platform, including Facebook Live, Youtube, Twitch, and more

With a subscription to Teradek's Core Cloud platform you can get even more out of your Prism Flex.
• Multi-streaming. Send streams to multiple destinations simultaneously
• Network Bonding. Avoid mid-stream drops and bond several internet connections together
• Archiving. Save on storage and keep your content in the cloud
• Transcoding. Transcode your video to AVC before sending it out to CDNs
• Remote Management. Manage your codec from anywhere
• Store and Forward. Save and send files in chunks for faster delivery

Teradek Prism Flex Features

  • HEVC + AVC Encoding
  • 4K HDR, 10-bit, 4:2:2 Video
  • HDMI and SDI I/O
  • Tabletop Design
  • Store and Forward
  • Core Cloud Compatible

Video -

Video Inputs

  • 1 x SD/HD/3G/6G/12G-SDI (75 Ω BNC)
  • 1 x HDMI 2.0 Type-A receptacle

Hdr Support

  • Up to one 4KDCI p60 4:2:2 10bit

Video Outputs

  • 1 x SD/HD/3G/6G/12G-SDI (75 Ω BNC loop out)

Bonding -


  • Prism App

Supported Resolutions -

Supported Resolutions

  • 4K DCI p23.98/24/25/29.97/30/50/59.94/60
  • 4K UHD p23.98/24/25/29.97/30/50/59.94/60
  • 1080p 23.98/24/25/29.97/30/50/59.94/60
  • 1080i 50/59.94/60
  • 1080PsF 23/24/25/29/30
  • 720p 50/59.94/60
  • 576i 480i

Video Processing -

Video Compression

  • ISO MPEG-4 Part 10: Advanced Video Coding (AVC)/ITU H.264
  • AVC: Baseline, Main, High
  • ISO MPEG-H Part 2: High Efficiency Video Coding (HEVC)/ITU H.265
  • HEVC: Main

Supported Video Bitrate

  • 250 kbps to 85 Mbps

Video Format Conversion Support

  • Built in video scaler and deinterlacer

Color Correction

  • CDL/1024 1D LUT (supports 10-bit color)
  • 33x33x33 3D LUT (supports 10-bit color)

Protocol Support -

Network Protocols


Supported Video Transport Protocols

  • RTMP/RTMPS, MPEG-TS (UDP, TCP, TCP Server, Multicast), CDNs (YouTube, Facebook, Vimeo)
  • Secure Reliable Transport (SRT)

Remote Control

  • Teradek Core

Audio Processing -

Audio Support

  • Stero, 5.1 Surround Sound

Audio Compression

  • AAC-LC

Supported Audio Bitrate Details

  • 32kbps to 512 kbps

Inputs -

Audio Input

  • 3.5mm Stereo Line Level Analog or Microphone in, adjustable gain

Physical -


  • 6.25"W x 3.6"D x 1.4"H [162 x 92 x 35mm]


  • 11.6oz [328.9g]


  • Milled Aluminum


  • Can be mounted horizontally or vertically with 1/4" 20 mounting holes

Interfaces -

Configuration Interfaces

  • Feature-rich Web UI for configuration and control
  • OLED Status Display w/ Nav control buttons

Recording Storage

  • SD Card - Full size

Usb Interface Functionality

  • 2 x Powered USB-C host ports with USB 3G/4G Modem support

Network -


  • 2 x 10/100/1000 BASE-T Gigabit Ethernet (RJ45)


  • WiFi: 2.4/5GHz 802.11 a/b/g/n/ac/ax MiMo

Power -

Power Input

  • 2 Pin Circular Locking Connector

Nominal Power Consumption

  • 18W

Auxilary Power Input

  • 6-28V DC

Compare Chart -

Ghz Support

  • Desktop

Compatible With Bolt4k

  • ✔️ <br> 8 Bonding Sources

Available Ranges

  • ✔️

Maximum Sdi Resolution

  • RTMP(S) <br> SRT <br> RTSP/RTP <br> MPEG-TS

Maximum Hdmi Resolution

  • ✔️

Smallhd Wireless Camera Control Port

  • Core <br> <br> Sony Ci <br> PIX

Transmitter Weight

Receiver Connectivity

  • ✔️

At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policy here.
  • We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.

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