BLANKOM HDE-4275Q 4K UHD Encoder and Streamer with HDMI Input

16 Channel, 4K HDMI to IP Encoder & Streamer | HDE-4275Q

BLANKOM HDE-4275Q

16-channel 4K Ultra High Definition (UHD) encoder & streamer for live broadcasting platforms and video-over-IP applications. Up to 3840*2160@30fps UHD resolution. Very stable operation on multicast distribution on local area networks. Suitable for video-over-IP applications through the internet. 4 IP output streams per channel at the same time with different resolutions, e.g., for LAN, YouTube, Facebook, and Twitch simultaneously.

All BLANKOM encoders offer perfect image quality and stable system operation at an affordable price.

Inputs

16x HDMI, HDMI embedded audio, 1x external analog stereo input by 3.5mm jack
Outputs

4x GbE IP ports (up to 4 IP Streams per channel each)
Outstanding features

HDE-4275Q supports a maximum resolution of 4096×2160@30fps at the input, and up to a stream resolution of 4096×2160@30fps at the output. It works with stream protocols SRT / HTTP / HLS / FLV / RTSP / RTMP / RTMPS / UDP/RTP (Unicast/Multicast) and ONVIF. The HDE-4275Q is compatible with online live-streaming services, such as YouTube, Facebook, Ustream, and others.

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16 Channel 4K UHD H.265 (HEVC) and H.264 HDMI Streaming Encoder with 4 Streams Output per Channel

 

BLANKOM HDE-4275Q 16 channel encoder serves the distribution of SD/HD and UHD TV/video content through IP networks in digital quality. The live video can be received by Internet media servers by TV sets with IPTV set top boxes, on PCs and tablets with VLC Player.

 

HDE-4275Q 16 Channel 4K HDMI Streaming Encoder with HDMI Input

HDE-4275Q 16 Channel 4K HDMI Streaming Encoder with HDMI Input

 

  • H.265 / H.264 / MJPEG Encoder & IP Streamer combined
  • 16x HDMI compatible inputs
  • HDMI 1 & 2 Max supports 3840*2160@30fps, HDMI 3 & 4 Max @1080P 60fps
  • Stereo Audio Input (external input for one channel, embedded HDMI audio on all channels)
  • 4 IP streams output per channel
  • Stable and effective embedded HiLinux OS
  • HD Resolution 2160p30 (4K), 1080p, 1080i, 720p and downscaling down to 176×144
  • Low latency: > 200ms … 1200ms max., depending on configuration and load
  • IP output: HTTP, RTSP, RTMP, RTMPS, UDP/RTP, FLV, ONVIF, HLS, SRT; unicast/multicast output.
  • Distribution of Video camera, PC Monitor, dif. STB, DVD / Blu-ray player content over LAN, WAN or Internet
  • Live stream broadcast, Digital signage, Video conferencing, RTSP support
  • Video-over IP applications
  • IPTV/OTT/Info-Channel applications
  • Local IPTV on LAN applications, Corporate IPTV, Hotel IPTV, Campus IPTV, Education IPTV
  • VLC and FFmpeg mode selectable
  • VBR/CBR bitrate mode encoding
  • Logo insertion (as *.bmp file) and Text insertion feature on main stream & on secondary streams
  • Streams to Ustream, Atlas™, Wowza®, and Adobe® Flash® Servers, www.vmix.com conform to YouTube, Vimeo, X, Facebook, Twitch live broadcast platforms
  • HLS encoding feature, Android and iOS mobile devices compatible

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HDE-4275Q 16 Channel 4K HDMI Streaming Encoder with HDMI Input Application

B2B application examples demonstrating how the high-density 16-channel architecture of the HDE-4275Q solves enterprise-grade video-over-IP requirements:

  • High-Density Asymmetric Ingestion for Luxury Smart Hotels: In elite hospitality installations, the HDE-4275Q serves as a centralized micro-headend. Leveraging its asymmetric capacity, the system ingests 8 premium 4K channels (such as Ultra HD movie servers and high-impact destination promo videos) at 4K30 resolution. Simultaneously, it processes 8 fluid international news and sports channels at 1080p60 resolution, optimizing the overall internal processor load. Utilizing its 4-stream per channel framework, each single channel can broadcast a local multicast feed, a mobile preview stream, and an administrative control feed at the same time.

  • Multi-Room University Campus Broadcast Hub and Distance Learning: In a centralized university network operations center (NOC), managing individual video streams from multiple lecture halls can be a hardware challenge. The HDE-4275Q allows the university to pull 16 high-definition HDMI camera and presentation feeds from 16 different classrooms into a single 1U rack unit. Each independent blade compresses the inputs into universally compatible H.264 or high-efficiency H.265 multicast streams, feeding the campus IPTV distribution line and streaming RTMP links to cloud education platforms simultaneously.

  • Industrial Control Room SCADA Map and Multi-Tier Fleet Monitoring: Large traffic centers and smart grids deploy the HDE-4275Q to consolidate display matrices. The 8 most critical, dense data screens (such as main wide-area SCADA infrastructure maps) are captured via the 4K-capable ports to maintain absolute pixel-to-text clarity. The remaining 8 ports ingest live overview telemetry or tracking cameras at smooth 1080p60. Because each channel outputs 4 independent streams, operators can route a primary secure SRT feed to the remote disaster center, an RTSP feed to the local NVR, and separate web-preview links for field supervisors concurrently.

  • Multi-Channel Live Sports Broadcasting and Cloud CDN Contribution: For live sports venues or broadcast media centers handling multi-court tournaments, space in production trucks or master control rooms is limited. Broadcast crews deploy the HDE-4275Q to ingest 16 high-definition production camera feeds simultaneously. Because each motherboard blade operates independently, one blade can be optimized to push secure high-bitrate SRT feeds back to the main television studio headend, while another blade concurrently pushes optimized RTMPS streams directly to social video platforms and public web portals.

  • Local Government Municipal Chamber and Multi-Camera Archiving: Large city municipalities utilize the HDE-4275Q to centralize all institutional AV lines. The system ingests HDMI inputs from multiple cameras inside the main council chamber, auxiliary committee rooms, and courthouse presentation desktops. The high-density encoder streams the primary feeds to public web portals via RTMP, while the dual-stream functionality allows the unit to push 16 low-latency sub-streams to a centralized Network Video Recorder (NVR) for official compliance logging and official digital archive storage.

 

BLANKOM HDE-4275Q IPTV encoder is designed for TV signal distribution in excellent quality over LAN and the INTERNET.

The H.264 and H.265 (HEVC)  compression technology features low-latency and low bit rates for IPTV/OTT systems. The high-efficiency encoding chips save bandwidth costs through all its resolution ranges.

Distribution of SD up to UHD TV channels through the IPTV/OTT network using state-of-art IP technology from almost any kind of video input.

Excellent video and audio quality.

High reliability. No regular service and maintenance is needed during operation.

From 1 input signal, 4 entirely different streams can be generated. The main stream can have up to 4K (2160p), the secondary streams can have up to 720p HD resolution.

On screen logo and text insertion. Through the HLS encoding feature, Android and iOS mobile devices are compatible.

The uni- and multicast streams can be assigned with DVB-conform table content to allow the integration into multiplexes of IP to DVB-Modulators.

The easy configuration is designed by a simple web interface application compatible with nearly every browser.

 

HDE-4275Q 16 Channel 4K HDMI Streaming Encoder with HDMI Input rear

HDE-4275Q 16 Channel 4K HDMI Streaming Encoder with HDMI Input rear

 

Function H.265 (HEVC) & H.264 (AVC) Encoder and IP Streamer

INPUT

  • 16x HDMI compatible inputs
  • Input Resolution: 2160p, 1080p, 1080i, 720p and below
  • HDMI 1 & 2 Max supports 3840*2160@30fps, HDMI 3 & 4 Max @1080P 60fps
  • Embedded audio from HDMI signal or Stereo Input by 3.5mm jack

OUTPUT

  • 4x 1000Mbps ports, RJ-45
  • Simultaneous 4 different streams output per channel (Mainstream and 3 Substreams)
  • Video data rate 0.1 Mbps … 100 Mbps
  • Output Resolution: 2160p, 1080p, 1080i, 720p and below (max. 2160p@30fps or 1080p@60 fps on main stream)
  • Main Stream output resolution support: 4096×2160, 3840×2160, 1920×1080, 1680×1056, 1280×720, 1024×576, 850×480, 720×576, 720×540, 720×480, 720×404, 704×576, 640×480, 640×360, 608×448, 544×480, 480×480, 480×384, 480×360, 480×320, 480×272, 480×270, 400×320, 400×224, 352×480, 352×228, 320×256, 320×240, 320×180, 240×180, 176×144.
  • Video fps 5-144 fps

SYSTEM

  • HiLinux OS
  • TS protocols: HTTP(s), RTSP, RTMPs, UDP/RTP, FLV, ONVIF, HLS, SRT; unicast/multicast output.
  • EDID/ GAMMUT Modes: BT2020, BT709, BT601
  • ONVIF 2.x supported by RTSP: G711A
  • Video encoder h.264 and h.265 (MPEG-4, AVC) high profile Level 4.0 UHD 4K max. 60fps, MJPEG/JPEG baseline
  • Data interface RJ45, 1000 Base-T Ethernet interface, Management by web browser
  • VLC and FFmpeg mode selectable
  • Encoding Rate control CBR/VBR
  • GOP Structure IBBP Adv
  • Pre-treatment De-interlacing, Noise reduction, Sharpening, Y-C adjustments
  • Audio Encoding AAC (normal, +,++), MP3, MP1L2, AC3 G711 stereo compatible
  • Audio Bit-rate: 32k/48k/96k/128k/160k/192k, Data-rate: 12 kbps-640 kbps
  • Audio Sampling Rates 44.1 kHz, 48.0 kHz
  • User interface: WEB GUI
  • 4 Logo and Text Insertion as transparent overlays
  • Firmware upgrade support by WebIF

GENERAL

  • DC 12V 8.5A power adapter
  • Dimensions: 19 inch, 1 RU, 483*250*44.5  mm
  • Weight: 4.5 kg

Specifications are subject to change without prior notice.

 

While both models share the same professional 4K video processing hardware and software features, they are built for entirely different operational scales:

  • HDE-275Q: A compact, portable desktop encoder powered via an external adapter, designed for mobile or small-scale workflows.

  • HDE-4275Q: A permanent 1U 19-inch rackmount high-density appliance that integrates 4 independent HDE-275Q motherboard modules into a single chassis, driven by a high-capacity internal shared industrial power supply.

The HDE-4275Q features a high-density, asymmetric hardware processing architecture designed to handle a total of 16 HDMI inputs within 1U of rack space. It does not support encoding 4K resolutions across all 16 channels simultaneously. The absolute maximum processing throughput threshold of the internal system-on-chip (SoC) matrix allows for a maximum of 8 HDMI channels running at 4K Ultra HD at 30fps (3840x2160p30) and 8 HDMI channels running at Full HD at 60fps (1080p60) simultaneously across the chassis.

The HDE-4275Q operates on a completely isolated multi-module architecture. Because the 4 internal motherboards are physically separate, each module features its own dedicated RJ45 Ethernet ports, runs its own independent embedded Linux OS, and is assigned its own unique IP addresses. Network engineers can independently configure, upgrade, or reboot any single blade via its respective web panel without affecting the live streaming operations of the other 3 blades.

To ensure optimal bandwidth management across heavy multi-channel 4K configurations, each processing core supports high-efficiency H.265/HEVC (Main Profile) and H.264/AVC (High/Main/Baseline Profile) video encoding. Audio tracks embedded in the HDMI signal lines are compressed utilizing industry-standard AAC-LC and MPEG-1 Layer II (MP2) algorithms.

Each motherboard blade incorporates a robust multi-protocol IP streaming engine. Every encoded channel can stream its payload concurrently across various professional channels, including UDP/RTP (Multicast and Unicast), SRT (Secure Reliable Transport), RTSP, HTTP, and RTMP/RTMPS, enabling parallel distribution to local IPTV networks and global cloud CDNs.

Yes, the device features an advanced multi-stream encoding architecture that goes beyond standard dual-streaming. Each of the 16 independent encoding channels can process and output up to 4 distinct, independent IP transport streams simultaneously from a single physical HDMI input source. This enables network engineers to configure a primary 4K or 1080p stream for master headend distribution while generating three additional sub-streams with customized resolutions, bitrates, and protocols for localized mobile proxies, monitoring walls, or multi-bitrate web encoding loops.

Deploying multiple portable units with individual external “power bricks” in a server environment creates significant cable clutter, ventilation blocks, and potential power failure risks. The HDE-4275Q is engineered strictly for permanent 19-inch kabinet rack mounting. Its integrated internal industrial power supply ensures superior voltage stability and efficient passive heat dissipation required by telecom-grade standards while saving critical rack space.

Yes, an advanced internal hardware OSD (On-Screen Display) engine is integrated into every independent encoding line. Network administrators can overlay customized text, live system timestamps, corporate logos, or transparent watermarks directly onto each channel’s video feed via the web panel in real time without causing any packet loss or stream stuttering.

Every motherboard blade operates on its own standalone, hardened embedded Linux operating system with zero third-party software dependencies. All system setups—such as streaming bitrates (CBR/VBR), protocol targets, resolution configurations, and audio maps—are managed completely remotely via an intuitive, responsive browser-based WebGUI (Web User Interface) through each blade’s respective Ethernet management interface.

Enclosed in a heavy-duty, ruggedized 1U metal chassis, the HDE-4275Q utilizes a passive fanless thermal cooling design per motherboard module, complemented by the structural ventilation paths of the 1U frame. By entirely removing moving mechanical components—which represent the primary failure points in standard encoder hardware—the system achieves exceptional thermal resilience and an outstanding Mean Time Between Failures (MTBF) profile, making it fully rated for uninterrupted 24/7/365 commercial headend deployments.

 

 

 

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