Compact 4K60 SDI/HDMI IP Encoder
SHDE-400
BLANKOM SHDE-400 is a compact 12G-SDI/HDMI 2.0 encoder for H.265/H.264 IP distribution up to 4K60. Each encoder provides a main stream and a substream, with USB and microSD recording facilities.
Ordering Guide
- SHDE-400 compact unit; specify source format, audio source, protocol and recording requirements
Technical Overview
SDI and HDMI can be processed in parallel, with a maximum combination of one 4K60 source and one 1080p60 source per encoder. The two inputs are not two simultaneous 4K60 encoding channels. Embedded audio or the separate analog audio input is selected; the sources are not mixed.
The technical specification defines a main stream up to UHD/4K60 and a substream up to 1080p60 per encoder. H.265 and H.264 profiles allow the output to be matched to a receiver. Frame rates above 60 fps refer to lower image formats, not to 4K operation.
The unit combines broadcast inputs with IP delivery over Gigabit Ethernet. For RTMP platforms, select a codec accepted by that service; H.265 availability in the encoder does not imply H.265 acceptance by every RTMP destination. Recording and IP distribution must be configured for the selected source and media.
At a Glance
INPUT
- Video inputs: 12G/HD/SD-SDI + HDMI 2.0; parallel maximum 1 × 4K60 + 1 × 1080p60 per encoder
- Audio selection: Embedded SDI/HDMI or external 3.5 mm stereo; selection, no mixing
OUTPUT
- Streams per encoder: 2: main up to 2160p60, substream up to 1080p60
- IP protocols: HTTP/HTTPS, SRT, HLS, FLV, RTSP, RTMP/RTMPS, UDP/RTP; ONVIF
FEATURES
- Video codecs: HEVC/H.265 Main/Main10; H.264 High/Main/Baseline
- Video bitrate and control: 0.1–100 Mbps; CBR, VBR, Strong CBR
- Audio codecs: AAC/AAC+/AAC++, MP3, MP2, AC-3, G.711; 44.1/48 kHz; 12–640 kbps
- Management: Gigabit RJ45; multilingual Web GUI; firmware updates; HTTPS with own certificate
- Recording: USB 3.0 recording; recording button and status indication
Ordering Guide
- Ordering: SHDE-400 compact unit; specify source format, audio source, protocol and recording requirements
Key Features
- Video codecs: HEVC/H.265 Main/Main10; H.264 High/Main/Baseline
- Video bitrate and control: 0.1–100 Mbps; CBR, VBR, Strong CBR
- Audio codecs: AAC/AAC+/AAC++, MP3, MP2, AC-3, G.711; 44.1/48 kHz; 12–640 kbps
- Management: Gigabit RJ45; multilingual Web GUI; firmware updates; HTTPS with own certificate
- Recording: USB 3.0 recording; recording button and status indication
System Diagram
Manufacturer reference diagram. The complete topology and required accessories depend on the project.

Typical Applications
UHD programme contribution
Encode a 12G-SDI studio source for a compatible SRT receiver. Select the bitrate, latency and receiver buffer for the real network; the product does not define a universal end-to-end delay.
Event distribution and recording
Feed HDMI or SDI from a production switcher, distribute the selected stream and configure USB recording. Check storage capacity and the selected recording format before an event.
Main and monitoring profiles
Use the main stream for UHD distribution and the 1080p substream for a compatible monitoring destination. Budget both active bitrates and protocol overhead on the Ethernet link.
Model Comparison
| Model | Configuration |
|---|---|
| SHDE-400 | Compact; one encoder; external 12 V adapter |
| SHDE-4000 | 1U; one encoder; redundant AC power |
| SHDE-4002 | 1U; two independent encoders; shared redundant power |
Product Images
Family reference illustration; the depicted housing or model may differ from the selected variant.



Technical Specifications
| Parameter | Specification |
|---|---|
| Video inputs | 12G/HD/SD-SDI + HDMI 2.0; parallel maximum 1 × 4K60 + 1 × 1080p60 per encoder |
| Audio selection | Embedded SDI/HDMI or external 3.5 mm stereo; selection, no mixing |
| Streams per encoder | 2: main up to 2160p60, substream up to 1080p60 |
| Video codecs | HEVC/H.265 Main/Main10; H.264 High/Main/Baseline |
| Video bitrate and control | 0.1–100 Mbps; CBR, VBR, Strong CBR |
| Frame rate | 4K up to 60 fps; 5–144 fps depending on lower-resolution format |
| IP protocols | HTTP/HTTPS, SRT, HLS, FLV, RTSP, RTMP/RTMPS, UDP/RTP; ONVIF |
| Audio codecs | AAC/AAC+/AAC++, MP3, MP2, AC-3, G.711; 44.1/48 kHz; 12–640 kbps |
| Management | Gigabit RJ45; multilingual Web GUI; firmware updates; HTTPS with own certificate |
| Recording | USB 3.0 recording; recording button and status indication |
| Power | 12 V DC, 2 A external adapter; AC 100–240 V |
| Chassis and storage | 150 × 110 × 45 mm; 500 g; USB 3.0 and microSD slot |
| Ordering | SHDE-400 compact unit; specify source format, audio source, protocol and recording requirements |
| Operating environment | −10 to +70 °C; 5–90% RH, non-condensing |
The listed values follow the official technical reference. Select the required model and configuration before ordering.
Technical FAQ
1. Can both inputs encode 4K60 at the same time?
Video inputs: 12G/HD/SD-SDI + HDMI 2.0; parallel maximum 1 × 4K60 + 1 × 1080p60 per encoder.
2. How many output streams does each encoder provide?
Streams per encoder: 2: main up to 2160p60, substream up to 1080p60.
3. Is analog audio mixed with embedded audio?
Audio selection: Embedded SDI/HDMI or external 3.5 mm stereo; selection, no mixing.
4. Which H.265 and H.264 profiles are specified?
Video codecs: HEVC/H.265 Main/Main10; H.264 High/Main/Baseline.
5. How is bandwidth controlled?
Video bitrate and control: 0.1–100 Mbps; CBR, VBR, Strong CBR.
6. Does 144 fps apply to 4K?
Frame rate: 4K up to 60 fps; 5–144 fps depending on lower-resolution format.
7. Which streaming protocols are available?
IP protocols: HTTP/HTTPS, SRT, HLS, FLV, RTSP, RTMP/RTMPS, UDP/RTP; ONVIF.
8. Which audio formats are supported?
Audio codecs: AAC/AAC+/AAC++, MP3, MP2, AC-3, G.711; 44.1/48 kHz; 12–640 kbps.
9. How are management and recording handled?
Management: Gigabit RJ45; multilingual Web GUI; firmware updates; HTTPS with own certificate. Recording: USB 3.0 recording; recording button and status indication.
10. Which hardware configuration should be ordered?
Power: 12 V DC, 2 A external adapter; AC 100–240 V. Chassis and storage: 150 × 110 × 45 mm; 500 g; USB 3.0 and microSD slot. Ordering: SHDE-400 compact unit; specify source format, audio source, protocol and recording requirements.