BG-4KHS
4K UHD HDMI 2.0 to 12G-SDI Converter with HDMI Loop-Out
and Audio Embedder
User Manual
BZBGEAR BG-4KHS PRODUCT MANUAL
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 2
BZBGEAR BG-4KHS PRODUCT MANUAL
TABLE OF CONTENTS
Statement 4
Safety Precaution 4
Introduction 5
Features 5
Packing List 5
Specifications 6
Panel Descriptions 7
Connection Diagram 8
Supported Resolutions 9
Tech Support 10
Limited Product Warranty Terms 10
Mission Statement 10
Copyright 10
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 3
BZBGEAR BG-4KHS PRODUCT MANUAL
Statement
Please read these instructions carefully before connecting, operating, or configuring this
product. Please save this manual for future reference.
Safety Precaution
● To prevent damaging this product, avoid heavy pressure, strong vibration, or immersion
during transportation, storage, and installation.
● The housing of this product is made of organic materials. Do not expose to any liquid,
gas, or solids which may corrode the shell.
● Do not expose the product to rain or moisture.
● To prevent the risk of electric shock, do not open the case. Installation and maintenance
should only be carried out by qualified technicians.
● Do not use the product beyond the specified temperature, humidity, or power supply
specifications.
● This product does not contain parts that can be maintained or repaired by users.
Damage caused by dismantling the product without authorization from BZBGEAR is not
covered under the warranty policy.
● Installation and use of this product must strictly comply with local electrical safety
standards.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 4
BZBGEAR BG-4KHS PRODUCT MANUAL
Introduction
The BZBGEAR BG-4KHS is an HDMI 2.0 to 12G/6G/3G/HD-SDI converter with an HDMI
loop-out and audio embedder. The HDMI signal is digitally converted into SDI, guaranteeing
lossless conversion for both audio and video. Featuring up to 8 channels of audio, the
BG-4KHS is compatible with 7.1 or 5.1 surround sound systems. The high-quality analog
stereo embedder, HDMI input, two SDI outputs, and an HDMI loop-out provides users
convenient flexibility. With these robust features, the BG-4KHS can take HDMI signals from
popular consumer-grade video interfaces and effortlessly convert it to SDI without
compression for use of professional or commercial AV equipment.
Features
● Supported high-definition (HD) formats:
1080p@24, 1080p@25, [email protected], 1080p@30, 1080p@50, 1080p@59.94,
1080p@60, [email protected], 3840x2160@24, 3840x2160@25, 3840x2[email protected],
3840x2160@30, 3840x2160@50, [email protected], 3840x2160@60,
[email protected], 4096x2160@24, 4096x2160@25, [email protected],
4096x2160@30, 4096x2160@50, [email protected], 4096x2160@60
Bit Rate: 11.88 Gbps, 11.88/1.001 Gbps, 5.94 Gbps, 5.94/1.001 Gbps, 2.97 Gbps,
2.97/1.001 Gbps, 1.485 Gbps, 1.485/1.001 Gbps, 270 Mbps
● Supports HDMI 2.0 and below
● Analog stereo embedding
● Two SDI outputs, one HDMI loop-out, and one HDMI input
Packing List
• 1 x BG-4KHS
• 1 x 5V power adapter
• 1 x Rack-mounting ears set
• 1 x User Manual
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 5
BZBGEAR BG-4KHS PRODUCT MANUAL
Specifications
Technical
SDI standards
12G/6G/3G/HD-SDI
HDMI standards
HDMI 2.0
Auto 3G/HD/SD-SDI detection
Yes
Video support
[SDI] [11.88 Gbps, 11.88/1.001 Gbps]
[HDMI] [up to 18Gbps]
Video bandwidth
[12G] 4K @50/59.94/60Hz
[6G] 4K2K @23.98/24, 25, 29.97, 30Hz
[3G] 1080p50/59.94/60
[HD] – 720p @50/59.94/60Hz,1080i @50/59.94/60Hz,
1080p @23.98/24/25/29.97/30Hz
Input signal
1x HDMI + 1x 3.5mm(Audio)
Output signal
2x SDI + 1x HDMI
Output impedance (SDI)
75Ω
Cable equalization
[12G-SDI] up to 70m (230ft)
[6G-SDI] up to 100m (328ft)
[3G-SDI] up to 190m (623ft)
[HD-SDI] up to 290m (951ft)
Audio support
[Analog] Supports 2ch stereo
[HDMI] Surround sound (up to 7.1ch)
PCB stack-up
6-layer board [impedance control — differential 100Ω; single 50Ω]
Input
1x HDMI + 1x 3.5mm Stereo Mini
Output
2x BNC [SDI] + 1x HDMI
BNC connector
75Ω interlocked socket
HDMI connector
Type A [19-pin female]
Mechanical
Housing
Metal enclosure
Dimensions
[L x W x H]
Model
140 x 106 x 24mm[5.5" x 4.1" x 0.9" ]
Package
198 x 137 x 74mm [7.8" x 5.4" x 2.9"]
Carton
420 x 400 x 300mm [1'4"x 1'3" x 11.8"]
Weight
Model
220g [7.7 oz]
Package
420g [0.9 lbs]
Power supply
5V DC
Power consumption
7 Watts [max]
Operation temperature
0~40°C [32~104°F]
Storage temperature
-20~60°C [-4~140°F]
Relative humidity
20%~90% RH [no condensation]
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 6
BZBGEAR BG-4KHS PRODUCT MANUAL
Panel Descriptions
1. SDI OUT
12G/6G/3G/HD-SDI output
2. SDI OUT
12G/6G/3G/HD-SDI output
3. Slide Switch
[Left] Stereo Audio Embedding Function (2ch)
[Middle] HDMI Audio Bypass (up to 7.1ch)
[Right] F/W update
4. LED
Signal LED indicator
5. LED
Power LED indicator
6. Micro USB Port
5V DC power
7. Stereo Audio Input
3.5mm Stereo mini
8. HDMI loop-out
Connects to an HDMI display using an HDMI male-to-male
cable
9. HDMI IN
Connects to an HDMI source using an HDMI male-to-male
cable
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 7
BZBGEAR BG-4KHS PRODUCT MANUAL
Connection Diagram
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 8
BZBGEAR BG-4KHS PRODUCT MANUAL
Supported Resolutions
12G-SDI Output
4K @50/59.94/60Hz
SMPTE ST-2082
6G-SDI Output
4K2K @23.98/24, 25, 29.97, 30Hz
SMPTE ST-2081
3G-SDI Output
1080p @ 50/ 59.94 / 60Hz
SMPTE 424M, SMPTE 425M
HD-SDI Output
720p @ 50Hz
SMPTE 296M -3
720p @ 60 / 59.94Hz
SMPTE 296M -1, -2
1080i @ 50Hz
SMPTE 274M -6
1080i @ 60 / 59.94Hz
SMPTE 274M -4, -5
1080p @ 24 / 23.98Hz
SMPTE 274M -10, -11
1080p @ 25Hz
SMPTE 274M -9
1080p @ 30 / 29.97Hz
SMPTE 274M -7, -8
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 9
BZBGEAR BG-4KHS PRODUCT MANUAL
Tech Support
Have technical questions? We may have answered them already!
Please visit BZBGEAR’s support page (bzbgear.com/support) for helpful information and tips
regarding our products. Here you will find our Knowledge Base (bzbgear.com/knowledge-base)
with detailed tutorials, quick start guides, and step-by-step troubleshooting instructions. Or
explore our YouTube channel, BZB TV (youtube.com/c/BZBTVchannel), for help setting up,
configuring, and other helpful how-to videos about our gear.
Need more in-depth support? Connect with one of our technical specialists directly:
Phone
1.888.499.9906
Email
support@bzbgear.com
Live Chat
bzbgear.com
Limited Product Warranty Terms
Pro Line: 5-year warranty from the date of purchase for AV/Broadcasting products bought on or
after August 1, 2024.
Essential Line: 3-year warranty from the date of purchase for AV/Broadcasting products bought on
or after August 1, 2024.
Cables: Lifetime Limited Product Warranty.
For complete warranty information, please visit bzbgear.com/warranty.
For questions, please call 1.888.499.9906 or email support@bzbgear.com.
Mission Statement
BZBGEAR is a breakthrough manufacturer of high-quality, innovative audiovisual equipment
ranging from AVoIP, professional broadcasting, conferencing, home theater, to live streaming
solutions. We pride ourselves on unparalleled customer support and services. Our team offers
system design consultation, and highly reviewed technical support for all the products in our
catalog. BZBGEAR delivers quality products designed with users in mind.
Copyright
All the contents in this manual and its copyright are owned by BZBGEAR. No one is
allowed to imitate, copy, or translate this manual without BZBGEAR’s permission. This
manual contains no guarantee, standpoint expression or other implies in any form.
Product specification and information in this manual is for reference only and subject to
change without notice.
All rights reserved. No reproducing is allowed without acknowledgement.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 10
