Product Video

Key Selling Points

Diagram of receivers feeding monitors over HDMI or SDI, with 1 receiver plus 2 apps or 2 receivers and no apps
Mars 4K link between camera and monitor, rated 450ft (150m) line of sight and 0.06s latency
Monitoring a 4K 30 fps feed, with a split image comparing 1080p and 4K detail
Mars 4K channel scan display marking which channels are occupied and which are free

The Hollyland Mars 4K Receiver is the monitor-side unit of the Mars 4K system, sold on its own with no transmitter in the box. It picks up the signal from a Mars 4K Transmitter and puts it out over HDMI 1.4b and 3G-SDI, so a director or producer can watch on a monitor they already own.

Key Features

  • Outputs video through one HDMI 1.4b port and one 3G-SDI port, and has no video inputs of its own because the picture arrives wirelessly.
  • With a 4K HDMI source at the transmitter, the HDMI output stays at 3840x2160 24, 25 or 30p and the SDI output delivers 1080p at 24, 25 or 30.
  • Rated at 450ft (150m) line of sight from the transmitter in an open, interference-free outdoor test, with 0.06s latency using a 1080p60 signal in a lab.
  • Draws under 5W (typical) and runs from 6V to 16V DC, an NP-F battery (6.8V to 8.4V) or USB-C at 5V/2.5A.
  • One Mars 4K Transmitter can feed 2 receivers, so this unit can add a second monitoring point to a setup that already has one receiver.
  • The menu marks interference-free channels in green and channels with interference in red, so you can pick a clean channel from the receiver.

In the Box

  • 1 x Mars 4K Receiver
  • 2 x Antenna
  • 1 x Self-Locking DC Adapter
  • 1 x User Guide
  • 1 x Warranty Card

How It Compares

Feature Hollyland Mars 4K Receiver Hollyland Mars M1 Enhanced
Built-in screen None 5.5-inch 1920x1080 touchscreen
Video outputs HDMI 1.4b and 3G-SDI HDMI 1.4b only
HDMI out from a 4K Mars 4K Transmitter 3840x2160 p24/25/30 1920x1080 p24/25/30
Power draw as a receiver Under 5W (typical) Under 13.6W
Weight without antennas 223g (7.9oz) About 400g (14.1oz)
  • You already own a monitor: Choose this receiver. It adds both HDMI and SDI outputs, passes 4K over HDMI, and weighs 223g against about 400g.
  • You want the screen and the receiver in one unit: Consider the Hollyland Mars M1 Enhanced. It has its own 5.5-inch touchscreen, but outputs 1080p over HDMI from a 4K Mars 4K Transmitter and has no SDI output.
  • You are starting with no Mars gear: The Hollyland Mars 4K Kit pairs a transmitter and a receiver in one box, so you do not need to buy them separately.

Pair It With

  • A transmitter: None is in this box. Use a Mars 4K Transmitter. Hollyland also lists the Mars 4K among the systems the Mars M1 Enhanced pairs with, and that monitor can switch into transmitter mode.
  • Pairing: Hollyland advises keeping the transmitter at least 1m from the receiver, holding the rocker button for 3 seconds to open the menu, and pairing from the menu on both units.
  • A monitor and a cable: This box has no monitor and no HDMI or SDI cable. Connect a monitor with an HDMI or SDI input to the matching output.
  • Pyro-series gear: Hollyland's Pyro 7 FAQ describes that monitor connecting to Pyro-series transmitters and does not say whether it pairs wirelessly with the Mars 4K, so treat a wireless pairing as unconfirmed.
  • Battery power: No battery is included. Hollyland recommends NP-F 970, NP-F 750 or NP-F 550 batteries, and the SmallRig USB-C Rechargeable NP-F970 Camera Battery and SmallRig NP-F550 USB-C Replacement Battery use those formats. V-Mount or Gold Mount batteries connect through a D-Tap to DC cable.
  • USB-C power: Use an adapter rated 5V/2.5A or higher. Hollyland does not support fast-charging adapters on this port and advises against power banks, because their current and voltage can fall quickly.
  • Mounting: Hollyland's guide attaches the receiver to a stand through the 1/4 threaded hole on the bottom of the unit.

Specifications

Video outputs HDMI 1.4b (Type-A female), 3G-SDI
Outputs from HDMI source HDMI: 720p50/60, 1080i50/60, 1080p24/25/30, 1080p50/60, 3840x2160 p24/25/30. SDI: 720p50/60, 1080i50/60, 1080p24/25/30, 1080p50/60, and 4K sources output at 1080p24/25/30
Outputs from SDI source HDMI and SDI: 1080p50/59.94/60, 1080i50/59.94/60, 1080p23.98/24/25/29.97/30, 720p50/59.94/60
Line-of-sight range 450ft (150m), test data in an open, interference-free outdoor environment
Latency 0.06s, test data with a 1080p60 signal in a laboratory
Operating frequency 5.1GHz to 5.8GHz, 20MHz bandwidth, 802.11n modulation
Receiver sensitivity -90dBm
Audio 2 channels over 3G-SDI, 8 channels over HDMI 1.4b
Power input DC 6V to 16V (2.0mm core socket), NP-F battery 6.8V to 8.4V, USB-C 5V/2.5A (Quick Charge and Power Delivery not supported)
Power consumption Under 5W (typical)
USB USB-C (USB 2.0 OTG)
Antenna connector RP-SMA male
Mounting 1/4 threaded hole, expansion accessory mounting holes
Weight 223g (7.9oz) without antennas
Dimensions 115 x 65 x 32mm (4.5 x 2.5 x 1.3in)
Temperature Operating -10 to 60 degrees C, storage -40 to 60 degrees C
Outputs video through one HDMI 1.4b port and one 3G-SDI port, and has no video inputs of its own because the picture arrives wirelessly.

With a 4K HDMI source at the transmitter, the HDMI output stays at 3840x2160 24, 25 or 30p and the SDI output delivers 1080p at 24, 25 or 30.

Rated at 450ft (150m) line of sight from the transmitter in an open, interference-free outdoor test, with 0.06s latency using a 1080p60 signal in a lab.

Draws under 5W (typical) and runs from 6V to 16V DC, an NP-F battery (6.8V to 8.4V) or USB-C at 5V/2.5A.

One Mars 4K Transmitter can feed 2 receivers, so this unit can add a second monitoring point to a setup that already has one receiver.

The menu marks interference-free channels in green and channels with interference in red, so you can pick a clean channel from the receiver.
1 x Mars 4K Receiver
2 x Antenna
1 x Self-Locking DC Adapter
1 x User Guide
1 x Warranty Card

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. For opened or used items, a minimum 15% restocking fee may apply depending on the item condition.

To start a return, you can contact us at info@filmgearcanada.com. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return-related questions at info@filmgearcanada.com.

Important Notice for Special Order Items

Certain professional and project-based products are supplied on a Special Order basis and are subject to different return conditions. Please review the “Special Order Items” section below before placing your order.

Damages and Issues

Please inspect your order upon reception and contact us immediately if the item is defective, damaged, or if you receive the wrong item, so that we can evaluate the issue and make it right.

If an item is defective within 14 days of delivery, email info@filmgearcanada.com with a short video of the problem and the serial number, or bring it to our showroom. Once we confirm the defect, we’ll replace it (or refund it if a replacement isn’t available) and handle the manufacturer claim ourselves.

For Special Order items, damage or defect claims must be reported immediately upon delivery and will be handled in accordance with the manufacturer’s warranty terms.

Exceptions / Non-returnable Items

Special Order Items (Final Sale)
Certain professional, project-based products are supplied on a Special Order basis and are not regularly stocked. Special Order items are final sale and cannot be returned, exchanged, or refunded once the order has been confirmed with the manufacturer. Special Order items are final sale whether they ship from our stock or are ordered from the manufacturer.

These items are ordered specifically for individual projects and may include, but are not limited to:

  • Professional wireless communication systems
  • Large-scale lighting equipment
  • Studio carts and grip equipment
  • Cine lenses and special production gear

Please ensure compatibility and project requirements before placing your order. If you have any questions regarding lead time or suitability, we strongly recommend contacting us prior to purchase.

In addition, we do not accept returns for open box, demo or clearance items, gift cards, hazardous materials, flammable liquids or gases.

Exchanges

The fastest way to ensure you get what you want is to return the item you have. Once the return is accepted, you may place a new order for the desired item.

Refunds

We will notify you once we’ve received and inspected your return and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please note that it may take some time for your bank or credit card company to process and post the refund.

FAQ

Can the Mars 4K Receiver output HDMI and SDI at the same time?

The receiver has one HDMI 1.4b output and one 3G-SDI output, and Hollyland's format table lists an output format for both ports against every input format. Hollyland's FAQ and quick guide do not say in words whether both run at once. If your setup depends on feeding two destinations together, contact Filmgear Canada before you order.

Can one transmitter feed 2 receivers and the HollyView app at the same time?

No. Hollyland states that a transmitter connected to 2 receivers cannot also connect to phones or tablets. Run 1 receiver and the transmitter can serve 2 phones or tablets as well. So if you want a phone on the same link as this receiver, keep the setup to a single receiver.

Is the Mars 4K Receiver compatible with a Pyro 7 monitor?

Over a cable, a monitor with an HDMI or SDI input can take the receiver's HDMI 1.4b or 3G-SDI output, as long as it accepts the video format. A wireless link is a different question. Hollyland's Pyro 7 FAQ describes it connecting to Pyro-series transmitters and does not say whether it pairs wirelessly with the Mars 4K, so treat a wireless pairing as unconfirmed and contact Filmgear Canada before planning on it.

Does the Mars 4K Receiver output 4K on both ports?

Only over HDMI. According to Hollyland's format table, an HDMI source at 3840x2160 24, 25 or 30p leaves the HDMI port at the same resolution and leaves the SDI port at 1080p24, 25 or 30. An SDI source tops out at 1080p60 on either port.

How do I pair this receiver with a Mars 4K Transmitter I already own?

According to Hollyland's FAQ and quick guide, keep the transmitter at least 1m from the receiver, hold the rocker button for 3 seconds on each unit to open the menu, and start pairing from the menu on both. If the receiver then shows CH- and no channel number, pair the two units again. If it shows no channel while on USB-C power, switch to a DC supply or NP-F battery and restart.