4K HDMI NDI Video Encoder/Decoder

◇ Real-time live video passthrough out with zero latency
◇ Standalone streaming, clean and no PC/Laptop required
◇ Encoder/decoder/NDI® in small box, one device multi-purpose
◇ Up to 4K30 hardware video encoder and decoder
◇ Up to 4K60 and 1080p120Hz loop through
◇ High efficiency H.264 HP/MP/BP or H.265/HEVC MP codec
◇ 4K HDMI input and HDMI loop out/output with embedded audio
◇ UVC to NDI/HDMI
◇ Auto input detection auto resolution and format switching
NDI® | HX3 support with better quality and very smallest delay
◇ Powerful NDI encoding or NDI decoding
◇ Up to 50mbps bitrate, high bandwidth video stream for best quality
◇ NDI® | HX3, RTSP, SRT, RTMP(s) steaming decoder up to 4K30

New Gen of Encoder/Decoder

ZowieBox is a new generation of hardware encoder/decoder in a small aluminum box, and an ultra-compact video streaming encoder and decoder with 4K Ultra HD video. In addition, It features officially certified NDI® | HX3, PoE, a standard tripod mount, and a large, distinct tally light, making it both cost-effective and user-friendly.

ZowieBox supports popular USB Type-C charger, WIFI, hotspot, DC output and a range of innovative modern features. It is a standalone streaming encoder without a PC, which is a flexible and affordable solution to stream high-quality video over a network for system integrators, streaming professionals, and OEM partners.

zowietek 4K NDI encoder decoder zero lag passthrough

Zero-lag passthrough

ZowieBox can capture your game in 4K with zero passthrough, and it can convert RGB, YCbCr 444/422 into a universal live broadcast format. This allows ZowieBox to support various computer monitors with HDMI video output, in addition, pass-through video can maintain the original video quality.
ZowieBox can support up to 1080p120 or 4K60 and it can downsize 1080p120 or 4K60 to 1080p60, and can also live stream and record 1080p60 videos while playing games. 1080p60 is the most widely used live broadcast resolution.

Standalone streaming without PC and capture card

ZowieBox is a professional-grade live broadcast device, especially suitable for independent game video live broadcasts. ZowieBox won’t cause any FPS issues like frame lag, skipped or dropped frames while live streaming and recording gameplay on PC, MAC, mobile and consoles.

Without a PC and capture card, the game can be directly broadcast through the gigabit network. At the same time, NDI game videos are also shared on the LAN.

zowietek 4K NDI encoder decoder standalone streaming without pc and capture card
zowietek 4K NDI encoder decoder gaming playing and streaming in real time

NDI Ecosystem

NDI® | HX3 brings ultra-low latency and high-definition connectivity to the gaming industry, making it ideal for everything from home streaming setups to global e-sports championship broadcasts. With NDI® | HX3, users can transmit high-quality audio and video directly to OBS or vMix with minimal bandwidth while maintaining smooth, real-time performance. Unlike traditional capture card setups, NDI® | HX3 enables seamless video monitoring across multiple PCs without additional hardware or complex cabling.

Its advanced compression technology ensures superior image quality while optimizing network efficiency. With support for higher frame rates, better color accuracy, and dynamic bitrate adjustment, NDI® | HX3 delivers a smooth and stable streaming experience even in demanding production environments. Additionally, it supports wireless transmission over Wi-Fi, reducing setup complexity and allowing greater flexibility in gaming studios or live event coverage. Whether for solo streamers or large-scale e-sports productions, NDI® | HX3 offers a powerful, scalable, and efficient solution.

NDI Discovery and Multicast

The NDI Discovery feature allows seamless identification and management of Zowietek NDI devices across different subnets by activating a discovery server, while also simplifying device filtering through server IP entry. Coupled with NDI Multicast, this functionality reduces data transmission and bandwidth usage by efficiently routing NDI sources to clients via a multicast-supporting router, enhancing overall network performance.

zowietek 4K NDI encoder decoder powerful encoding and decoding

Powerful encoding and decoding

ZowieBox can encode formats such as H.264 HP/MP/BP, H.265/HEVC MP, NDI, NDI|HX2 and NDI|HX3 as well as SRT, RTMP, RTMPS or RTSP protocols whose bitrate could be up to 50 Mbit/sec. Simultaneously it can directly push streams to multi-platforms such as Facebook, Twitch and YouTube, without a PC. Alternatively, these IP streams could decoder into high-quality HDMI outputs.

Flexible recording and display

ZowieBox supports streaming and recording simultaneously, with a video frame rate of up to 60fps and a 24-frame movie frame rate. The input can be recorded as files to TF card or USB storage or NAS. The front mini screen can display current settings and working status in real time. If you have unlimited storage space, you can also choose the next-generation HEVC format for archiving and editing.

zowietek 4K NDI encoder decoder flexible recording and display

UVC to NDI and HDMI

ZowieBox supports decode USB camera to HDMI or encode to NDI, ZowieBox allows you to unfold more possibilities of the webcam devices. USB capture card function is not currently supported.

Simple operation and easy setup

Browser-based GUI, you can control it via computer, phone, iPad, WiFi or hotspot. As long as the user’s mobile phone, computer and ZowieBox are in the same network, they can log in to the control interface without an IP address. In addition, users can find ZowieBox in the same network segment on the configuration interface and control it with one click.

zowietek 4K NDI encoder decoder simple operation and easy setup
zowietek 4K NDI encoder decoder PTZ control

Seamless Control and Integration

ZowieBox allows you to convert legacy PTZ camera into a network camera for seamless online operation and integration with various broadcast systems. It supports IP VISCA and NDI control, as well as camera control via USB to serial RS232/485/422, enabling remote operation. This simplifies device connections by eliminating the complexity of traditional cable setups while enhancing flexibility and scalability. Ideal for live streaming, conferences, and broadcast scenarios, ZowieBox’s network control enables users to remotely manage equipment in diverse environments, improving operational efficiency.

Multi-Source Power Flexibility  and Convenient

ZowieBox offers multiple power solutions to fit any setup. It can be powered via PoE up to 100 meters away, eliminating the need for extra cables. Alternatively, you can use a USB-C charger or power bank (5V to 20V) with a DC to USB-C adapter, providing flexibility for on-the-go use.

Additionally, ZowieBox features a 12V DC output to power external devices like PTZ cameras and monitors, streamlining your setup and ensuring everything stays powered for efficient operations.

zowietek 4K NDI encoder decoder multi charger with DC out

Seamless, Low-Latency Video     Streaming Experience

ZowieBox allows you to effortlessly transmit video signals remotely from computers, cameras, and other devices with unprecedented efficiency. Say goodbye to high-latency streaming issues, as ZowieBox delivers just 100ms of transmission delay within a Local Area Network, ensuring real-time, smooth video streaming perfect for live events, conferences, and broadcasts, HDMI expander

Moreover, ZowieBox supports long-distance, point-to-point transmission over the network, with protocols like SRT and RTMP, making it an ideal solution for remote production, streaming, and professional broadcasting. Even over distances of 100 meters, ZowieBox guarantees reliable, high-quality video transmission, solving issues related to distance, latency, and device compatibility.

Built in Tally

ZowieBox includes a built-in large Tally display for your on-air talent to easily see which camera is live, synchronize with OBS, Vmix and NDI, then respond to PGM and PVW.

Power
Input USB TYPE C, 25W above, Up to 20V 1A, 20W up with DC Adapter, PoE+(802.3at), CAT5e above
Consumption ~10W Max (Without DC Out)
Output 12V 1A DC Max with current limit
Video
Video Encoder H.264 HP/MP/BP, H.265 MP
Resolution 4K2160p25/30, 1080p25/30/50/60,
Encoder/Decoder 1080i50/60, 720p50/60,

For both video Input & Output

Loop through* Up to 4K60, 1080p120Hz, HDR10 & Dolby
Frame Rate 24/25/30fps, 50/60fps for 1080/720p
Codec H.264/H.265
Rate Control CBR/VBR
Live Preview Web, HDMI loop through and output
*Resolution above 4K30 will be automatically down scaled for streaming
Network
LAN 100/1000Mbps Gigabit
WIFI 802.11a/b/g/n/ac, Dual Band
Bluetooth V5.0
WEB http, https
Streaming
Streaming In RTSP/RTMP(s)/SRT
Streaming Decoder RTMP(s)/SRT/RTP/UDP/RTSP/TCP/HTTP(s),

*SRT caller only

Bit Rate Max. 50mbits/s, adjustable
NDI® Encoder NDI® | HX3/HX2/HX
NDI® Decoder NDI® | HX3/HX2/HX
NDI Audio Direct Audio over NDI
Recorder mp4, mov, ts
Rotation 0/90/180/270n°, native vertical streaming
Main Video Stream Up to 4K30
Secondary Stream Up to 720p
Audio
Sampling 32, 44.1, 48KHz
Encoder AAC, MP3, 16bit
Bitrate 32-192kbps
Channel Dual, AGC
Input 0.7VRMS, 20Kohm
Output 16ohm, 30mW
Source HDMI Embedded, Line In
Input/Output
HDMI In 1.4b/2.0b, RGB/YCbCr 444/422/420
HDMI Loop out 2.0, up 4K60
HDMI Out 1.4b, up to 4K30
NDI NDI® | HX3/HX2/HX (NDI 5.5 upgradeable)
Configuration
Display Dot Matrix, COG
Setting Mobile Phone, Pad, PC, RESTFUL
OSD Text, Logo Caption, Time Stamp, WYSIWYG
PTZ
Interface RS232/485/422 via USB dongle*
Protocol Pelco D/P, VISCA
Tally
Tally Auto/Manual
Software
Firmware Upgradeable, Linux OS
Interface
HDMI Input 1 x TYPE A, Receptacle, 1.4b
HDMI Loop Out 1 x TYPE A, Receptacle(Mux), 2.0b
HDMI Output 1 x TYPE A, Receptacle(Mux), 1.4b
Audio In 1 x 3.5mm TRS Jack
Audio Out 1 x 3.5mm TRS Jack
Network 1 x RJ45, Gigabit, PoE
USB 1 x USB, TYPE A
Visible 1 x RGB LED Panel, 1 x LCD
Storage
Internal 1 x MicroSD/TF, USB
Network NAS
Disk Format FAT32 up to 2T, exFAT
*All storage media not included
Physical
Size 123 x 68 x 22mm(4.8″ x 2.7″ x 0.9″)
Weight 166g(5.9oz) Black aluminum
Operating 0°C to 45°C(32°F to 113°F)
Storage -20°C to 60°C(-4°F to 140°F)
Tripod 1/4” – 20UNC
Certification
CE, FCC EN IEC 61000-3-2, EN 61000-3-3
Item Type Update Version Download
Spec PDF 02/26/2025
Manual PDF 08/25/2023
Quick Start PDF 09/15/2023
Firmware ZIP 4/3/2025 1.1.0.7
Product P/N
4K NDI Video Encoder/Decoder 30621-102
4K Video Encoder/Decoder 30621-101
Accessories
USB TYPE C PD Charger x 1
USB TYPE C Cable
Cold Shoe 1/4″
Quick Start Guide
*USB RS232/RS485/RS422 Dongle
*Ultra Slim USB HUB
*Accessories is optional and sold separately

NDI® is a registered trademark of NewTek, Inc.

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