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

Transmitter and Receiver Set
Transmit up to 1080p60 Video
Transmit up to 500′ Line-of-Sight
Extremely Low 70 ms Latency
SDI and HDMI Inputs and Outputs
L-Series Battery/USB-C/DC Power
OLED Display, Low-Battery Warning
Shoe Adapter and 1/4″-20 Mounting Thread

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Description

Hollyland Mars 400 Pro II Overview

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.

Specification

Specs

Brand	Hollyland
Color	Black
Wireless Range	500' / 152.4 m (Line-of-Sight)
Channel Bandwidth	20 MHz
Frequency Range	5 GHz
Latency	70 ms
RF Power	≤ 21 dBm
RF Sensitivity	-80 dBm
Video I/O	Receiver: 1x HDMI Output , Transmitter: 1x BNC (3G-SDI) Input , Transmitter: 1x HDMI Input , Transmitter/Receiver: 1x USB-C (16 VDC) Input
Embedded Audio	HDMI/SDI
Video Format	HDMI/SDI 1080p
Mobile App Compatible	Yes: Android & iOS App Name: Hollyview

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Storage Capacity	Built-in 1 TB drive (actual capacity is less than 1 TB due to system requirements)
Standard Compliance	IEEE802.11b/g/n
Transmission Method	DS-SS modulation (IEEE 802.11b) – OFDM modulation (IEEE 802.11g / n)
Transmission Range	Approx. 49.2' / 15 m
Transmission Frequency	2.412 – 2.462 GHz
Security	WEP, WPA-PSK (TKIP), WPA-PSK (AES), WPA2-PSK (TKIP), WPA2-PSK (AES)
Interface Type	10BASE-T, 100BASE-TX, 1000BASE-T
USB	Hi-Speed USB (USB 2.0)
HDMI Out	Type A, CEC-compatible
Card Slot	1x CF (Type I or II compatible) – 1x SD (SD, SDHC, SDXC; UHS-I is not compatible)
Still Image	JPEG, RAW (CR2 only)
Video	MP4, MOV, AVCHD
Operating Environment	32-104°F / 0-40°C – 85% or less relative humidity
Power Consumption	During operation: Approx. 10 W – During standby: Approx. 9.5 W
Power Adapter	Compact Power Adapter CA-PS00 – 100-240 V AC – 50/60 Hz – 5.9' / 1.8 m DC cord
Dimensions	CS100: 155.6 x 51.1 x 155.6 mm – Remote Controller CS-RC1: 41.3 x 15.1 x 125.5 mm – Compact Power Adapter CA-PS00: 112 x 29 x 45 mm (excluding power cord)
Weight	CS100: 570 g – Remote Controller CS-RC1: 48 g – Compact Power Adapter CA-PS00: 185 g (excluding power cord)