HDMI to SDI Converter


Broadcast Quality HDMI to 3G/HD/SD-SDI Converter

BLANKOM HSD-450 broadcast-grade professional HDMI to 3G/HD/SD-SDI Converter. Up to 1080p60 resolution. For high performance video, post-production and broadcast applications. Enhanced image processing, outstanding audio quality. Compatible with all BLANKOM STBs, Streamers, IRDs, Encoders, & Decoders.

  • HDMI Input
  • Dual 3G/HD/SD-SDI Output (Compliance: SMPTE 259M / SMPTE 292M / SMPTE 296M / SMPTE 274M)
  • Up to 1080p60 input resolution
  • Up to 1080p60 output resolution
  • Low SDI Jitter and SDI re-clocking = long cable compensation w/o any loss of Video quality
  • Automatically matches the SD, HD and 3G-SDI HDMI video input
  • SDI Rates: 270Mb, 1.5G, 3G
  • Embedded audio from HDMI
  • 3 LEDs indicating HDMI Video In, SDI Video Out, Power On
  • Suitable for 24/7 use (MTBF: 30,000 hours)
  • Professional quality, breakthrough price

Broadcast quality HDMI to 3G/HD/SD-SDI Converter with outstanding video and audio performance.


HDMI 1.3 and below input, dual SDI output

Up to 1080p60 resolution at the input and at the output

3 LEDs for indicating input video, output video and power

Optimized for 24/7 use in headend environment

Tested and fully compatible with all BLANKOM devices.


Converting the HDMI output of a Set-Top Box to HD-SDI

Converting the HDMI output of a camera to HD-SDI

Enabling the use an IPTV Set-Top Box instead of an IRD at cost sensitive applications

Long distance transport of SDI signals (The recommended maximum distance: 3G-SDI: 140 meters, HD-SDI: 200 meters)

BLANKOM HSD-450 HDMI to SDI Converter

Application Example:

HD-SDI Transmission over Cloud with Streamer, STB and Converter

HD-SDI signal transmission over internet to a distant location in HD quality

Equipment list:

  • 1 pce SDE-264 Encoder & IP Streamer with SDI Input
  • 1 pce IPTV Set-Top Box
  • 1 pce HDMI to SDI Converter

Technical Specifications

Function  HDMI to SDI Converter
Input  HDMI 1.3 and backward
Output  3G HD SDI(SMPTE 259M/ SMPTE 292M/ SMPTE 296M/ SMPTE 274M)
Interface  HDMI A – Female
Power Consumption  5V DC (±0.5V) / 1A ± 10%
HDMI – Input Resolution  1920x1080p (60/59.94/50/30/29.97/25/24) Hz
1920x1080i (60/50) Hz
1280x720p (60/50) Hz
SDI – Output Resolution


 1920x1080p (60/59.94/50/30/29.97/25/24) Hz
1920x1080i (60/50) Hz
1280x720p (60/50) Hz
IIS (Inter—ICSound)
Compliance  CE, RoHS
Temperature  Operating temperature. 10 °C – 40 °C (50-104°F)
Relative Humidity. < 85%
Storage temperature. -10 °C – 85 °C (14~176°F)
Dimensions  135 x 110 x 26 mm Weight: 208g
Housing  Aluminium Alloy
Packing  HSD-450 HDMI TO SDI Converter
Power Adapter *1Pc 100V-240V AC

Specifications are subject to change without prior notice.