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Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Transmission System

BH #HOHL400SP2 • MFR #HL-MARS 400S PRO II
Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Transmission System
Key Features
  • Transmitter and Receiver Set
  • Transmit up to 1080p60 Video
  • Transmit up to 500' Line-of-Sight
  • Extremely Low 70 ms Latency
Add up to 1080p60 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig using the lightweight Mars 400S PRO II SDI/HDMI Wireless Video Transmission System from Hollyland. The transmitter provides HDMI and SDI inputs, and the receiver offers SDI and HDMI outputs. It features an extremely low 70 ms latency and a high 12 Mb/s data rate with line-of-sight transmission up to 500' to the receiver and to the Hollyview Wi-Fi app. For a strong line-of-sight signal, the system includes two external antennas on the transmitter and two on the receiver, and one is included as a spare.
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Hollyland Mars 400 Pro II Overview

  • 1Description
  • 2
  • 3Greater Range, Lower Latency
  • 4Crisp Clarity with High Data Rate
  • 5Ultra-Low Latency
  • 6SDI and HDMI
  • 7Smart Channel Scan
  • 8Monitor on up to 4 Devices
  • 9Flexible Fan Control
  • 10Integrated Cold Shoe
By B&H Photo's
Add up to 1080p60 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig using the lightweight Mars 400S PRO II SDI/HDMI Wireless Video Transmission System from Hollyland. The transmitter provides HDMI and SDI inputs, and the receiver offers SDI and HDMI outputs. It features an extremely low 70 ms latency and a high 12 Mb/s data rate with line-of-sight transmission up to 500' to the receiver and to the Hollyview Wi-Fi app. For a strong line-of-sight signal, the system includes two external antennas on the transmitter and two on the receiver, and one is included as a spare.
Greater Range, Lower Latency
The Mars 400S Pro II is a powerful video transmission system that offers a transmission range of up to 500' and achieves a low latency of just 70ms. The Mars 400S Pro II is equipped with SDI and HDMI interfaces, supports multi-receiver setups, and allows monitoring through the HollyView App.
Crisp Clarity with High Data Rate
The system supports a high 12 Mb/s data rate, enabling high-definition video transmission and delivering clear, refined image quality with rich details.
Ultra-Low Latency
The Mars 400S Pro II raises the bar with a very low latency of just 70ms. It outperforms Mars 400S Pro by reducing latency by 30% and providing a stable signal transmission range of up to 500'. This ensures high-definition image quality and an immersive low-latency experience. It is also compatible with Mars 400S Pro, allowing them to be paired and used together.
SDI and HDMI
Equipped with both SDI and HDMI interfaces, the Mars 400S Pro II provides enhanced device compatibility and convenient connections to various types of equipment. Whether it's a DSLR or professional film camera, the Mars 400S Pro II can fulfill your connectivity requirements.
Smart Channel Scan
Upon startup, Mars 400S Pro II automatically selects the best frequency channels. Manual channel scanning can be conducted using the receiver or the HollyView App, providing a visual representation of signal interference levels at each frequency. The app allows you to install optional channel-scanning firmware, enabling you to easily find the strongest transmission signals.
Monitor on up to 4 Devices
The Mars 400S Pro II offers flexible solutions to meet monitoring needs, including team collaboration, multi-crew monitoring, and multi-member cooperation. Using the Hollyview app for iOS or Android, you can monitor your video transmission in real time via a Wi-Fi connection as well as live stream directly from the receiver via your computer using a USB-C adapter. The transmitter can simultaneously transmit to up to one receiver and two apps, or to a total of four apps without the receiver.
Flexible Fan Control
Each Mars 400S Pro II unit is equipped with a three-speed fan adjustment feature (Auto, Low Speed, Off). Its intelligent cooling design allows it to perform optimally in various usage scenarios by reducing device temperature and ensuring stable signal transmission.
Integrated Cold Shoe
Integrated with a shoe adapter featuring a 1/4"-20 screw simplifies the installation process. Simply connect the shoe adapter of the Mars 400S Pro II to a cold shoe slot on your camera or cage without the need for any cumbersome additional installation steps.

Hollyland Mars 400 Pro II Specs

Key Specs
Video I/O
Transmitter: 1x HDMI Input
Transmitter: 1x BNC (3G-SDI) Input
Receiver: 1x HDMI Output
Receiver: 1x BNC (3G-SDI) Output
Embedded Audio
HDMI/SDI
Latency
70 ms
Video Format
HDMI/SDI
1080p
Battery Type
Transmitter/Receiver: 1x L-Series
Power Consumption
Transmitter: 11 W
Receiver: 7 W
Inputs / Outputs
Antenna I/O
Transmitter/Receiver: 2x RP-SMA
Video I/O
Transmitter: 1x HDMI Input
Transmitter: 1x BNC (3G-SDI) Input
Receiver: 1x HDMI Output
Receiver: 1x BNC (3G-SDI) Output
Embedded Audio
HDMI/SDI
Audio I/O
No
Power I/O
Transmitter/Receiver: 1x Barrel (5 VDC) Input
Transmitter/Receiver: 1x USB-C (16 VDC) Input
Encryption
No
Wireless
Wireless Range
500' / 152.4 m (Line-of-Sight)
Channel Bandwidth
20 MHz
Frequency Range
US: 5 GHz
Latency
70 ms
RF Power
< 21 dBm
RF Sensitivity
-80 dBm
Bluetooth
No
Mobile App Compatible
Yes: Android & iOS
App Name: Hollyview
Cellular Support
No
Format Support
Video Format
HDMI/SDI
1080p
Power
DC Input Power
6 to 16 VDC
Battery Type
Transmitter/Receiver: 1x L-Series
Power Consumption
Transmitter: 11 W
Receiver: 7 W
Environmental
Environmental Protection
No
Certifications
No
General
Dimensions
Transmitter/Receiver: 4.3 x 2.8 x 1.3" / 110 x 72 x 33.5 mm
Weight
Transmitter/Receiver: 7.3 oz / 206 g
Packaging Info
Package Weight
1.955 lb
Box Dimensions (LxWxH)
8 x 5.7 x 3.6"

Hollyland Mars 400 Pro II Reviews

See any errors on this page? Let us know

In the previous version I had SDI connectivity ...

In the previous version I had SDI connectivity problems towards the Black magic Design Atem Switchers. Was that problem solve?
Asked by: Carlos
The older Black Magic switchers required a specific framerate because they do not have scalers in each input like newer Constellation, Atem Mini/Extreme models now offer. This was not a problem with the older Hollyland Mars 400S PRO. Also, when using the DECIMATOR MD-HX you will be able to correct the framerate issues. DECIMATOR MD-HX Miniature HDMI/SDI Cross Converter with Scaling &amp; Frame Rate Conversion BH #DEDDHX
Answered by: Chris H
Date published: 2024-01-09

Can the support 59.94 in/out?

Can the support 59.94 in/out?
Asked by: Charles
The Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Transmission System (BH #HOHL400SP2) supports a 59.94fps input. The receiver converts that signal to an even 60fps, similar to the original 400S model, so there is no way to output 59.94.
Answered by: Zacky
Date published: 2024-02-02

Is the latency actually low enough that you can ...

Is the latency actually low enough that you can pull focus with it? How does the latency compare to a Teradek Bolt?
Asked by: Nickolas
Teradek Bolt is a zero latency solution. The Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Transmission System does have latency and combined with the latency of the follow focus system, may not be an acceptable amount for production needs.
Answered by: JonathanS
Date published: 2023-12-10

where can i buy the transmitter only?

where can i buy the transmitter only?
Asked by: jason
The Hollyland Hollyland Mars 400S PRO II transmitter would need to be purchased in a kit that includes one Receiver. Hollyland Mars 400S PRO II SDI/HDMI Wireless Video Transmission System BH #HOHL400SP2
Answered by: Chris H
Date published: 2024-02-02
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