SmallRig 3040 HDMI Cable 4K – Ultra-Slim 4K HDMI Cable for Professional Camera Rigs
SmallRig 3040 HDMI Cable 4K is a compact and ultra-slim Mini HDMI to HDMI cable designed primarily for connecting cameras, external monitors, video recorders, and other professional video equipment. The cable features a Mini HDMI Type-C connector on one end and a standard HDMI Type-A connector on the other, making it suitable for cameras equipped with a Mini HDMI video output. According to SmallRig, the cable supports HDMI 2.0 and video signals up to 4K at 60 Hz.
At just 35 cm in length, the SmallRig 3040 HDMI Cable 4K is specifically designed for compact camera rigs. Compared with a conventional long HDMI cable, it leaves significantly less excess cable around the rig, creating a cleaner setup and reducing the risk of snagging. With an outer diameter of only 3.6 mm, the cable is thinner and more flexible than a standard HDMI cable.
Mini HDMI Type-C to Full-Size HDMI Type-A Connection
The C-to-A designation of the SmallRig 3040 HDMI Cable 4K refers to the connector types used by the cable. The camera end features a Mini HDMI, or HDMI Type-C, connector, while the opposite end uses a standard full-size HDMI Type-A connector.
This combination is practical for connecting a wide range of photo and video cameras to external monitors or video recorders. SmallRig lists cameras such as the Nikon Z6 and Z7, Canon EOS R, EOS RP, and EOS 5D Mark IV as examples of compatible Mini HDMI devices. However, the most important consideration before purchasing is to verify the HDMI port type on your specific camera, as Type-C Mini HDMI and Type-D Micro HDMI are physically different connectors.
The full-size HDMI Type-A connector at the other end is compatible with many monitors, video recorders, and other video devices equipped with a standard HDMI input. This allows a compact direct connection between the camera and a monitor mounted on the rig.
HDMI 2.0 and Up to 4K 60 Hz Video Support
A modern video rig requires an HDMI cable capable of handling high-quality video signals reliably. According to SmallRig specifications, the SmallRig 3040 HDMI Cable 4K supports HDMI 2.0 and resolutions up to 4K at 60 Hz.
This makes the cable suitable for modern 4K video cameras, provided that the camera’s HDMI output, the receiving monitor or recorder, and the selected video mode are all compatible. The actual resolution and frame rate available in practice will always depend on the entire signal chain, including the camera’s output capabilities, the receiving device, and their settings.
Support for 4K 60 Hz provides enough bandwidth for both conventional Full HD monitoring and higher-resolution video transmission.
35 cm Length Optimized for Camera Rigs
When building a video rig, a longer HDMI cable is not always better. If the monitor is mounted only a short distance from the camera, a one- or two-meter cable can create unnecessary loops that need to be secured to the cage, handle, or other rig components.
The SmallRig 3040 HDMI Cable 4K measures 35 cm, a length specifically suited to compact camera rig setups.
The short cable makes it possible to connect a camera to a top-mounted or side-mounted monitor without excessive loose cable. The result is a cleaner and more compact setup that is easier to operate from a tripod, shoulder rig, or handheld configuration.
Ultra-Slim 3.6 mm Construction
One of the most important physical characteristics of the SmallRig 3040 HDMI Cable 4K is its exceptionally slim 3.6 mm outer diameter. According to SmallRig, the ultra-slim construction makes the cable thinner and softer than conventional HDMI cables.
Flexibility is especially important in camera rigs because the HDMI cable often needs to route around a cage, monitor mount, handle, and other accessories. A thick, rigid cable can place unnecessary lateral stress on the camera’s relatively small Mini HDMI port and make the overall rig more difficult to assemble.
The slim cable design allows for cleaner routing while reducing both added weight and cable stiffness.
Low-Profile Connectors for Compact Rigs
Space can quickly become limited around the sides of a camera cage. USB, microphone, headphone, and other ports may be located close to the HDMI connection, and an oversized HDMI plug can make these neighboring connections difficult to access.
The SmallRig 3040 HDMI Cable 4K uses low-profile connectors designed for compact camera rigs. This construction helps maintain access to adjacent ports and makes cable routing easier.
This is especially useful when using a camera cage, where even a few millimeters can affect how cables, clamps, handles, and other accessories fit together.
Ideal for Connecting an External Camera Monitor
One of the most common applications for the SmallRig 3040 HDMI Cable 4K is connecting a camera to an external monitor.
An external monitor provides a larger image than the camera’s built-in screen and, depending on the monitor, may offer additional professional video tools such as waveform monitoring, false color, focus peaking, and LUT preview. In this type of setup, the HDMI cable forms the essential connection between the camera and the monitor.
The 35 cm length is particularly well suited to rigs where the monitor is mounted above the camera, near a top handle, or on a side-mounted monitor arm. The short, flexible cable helps keep the overall configuration as compact as possible.
Suitable for External Video Recorders
HDMI connections are also widely used with external video recorders. If the camera provides a suitable HDMI video output and the recorder features a full-size HDMI input, the SmallRig 3040 HDMI Cable 4K can provide a compact connection between the two devices.
Depending on the camera and recorder combination, an external recorder may offer alternative recording formats, a larger display, and additional professional monitoring functions. In such a system, the HDMI cable carries the video signal from the camera to the recorder.
With HDMI 2.0 support and capability for up to 4K 60 Hz video, the cable is well suited to demanding modern video rigs, provided the other connected devices support the desired output mode.
Compact Solution for Run-and-Gun Videography
For run-and-gun filmmaking, a camera rig needs to remain as compact, manageable, and reliable as possible. Excess cable can catch on handles or other rig components and make camera movement less comfortable.
The SmallRig 3040 HDMI Cable 4K combines several features that suit this style of shooting: a 35 cm length, 3.6 mm diameter, and low-profile connectors.
This makes the cable a practical choice for documentary work, events, interviews, weddings, commercial shoots, and other mobile video applications where an external monitor or recorder is attached to the camera.
Less Excess Cable Means a Cleaner Rig
Cable management on a professional camera rig is not only about appearance. A long cable hanging loosely from the rig can catch on the operator’s hand, a handle, or another piece of equipment.
The short SmallRig 3040 HDMI Cable 4K keeps the signal path compact. When the monitor is located close to the camera, 35 cm provides sufficient reach while leaving significantly less excess cable to secure to the rig.
Good cable management becomes even more important when the camera also uses separate power, audio, and USB cables.
Designed for Cameras with Mini HDMI Output
The most important compatibility consideration for the SmallRig 3040 HDMI Cable 4K is the HDMI port type on the camera. The camera-side connector is Mini HDMI Type-C, not the smaller Micro HDMI Type-D connector.
SmallRig lists models such as the Nikon Z6 and Z7, Canon EOS R, EOS RP, and EOS 5D Mark IV as examples of cameras that use compatible Mini HDMI connections. These are examples rather than a complete compatibility list. In principle, the cable is intended for any device with a Mini HDMI Type-C output that needs to connect to a device with a full-size HDMI Type-A input.
Before purchasing, it is therefore important to verify the physical HDMI connector type rather than relying only on the camera manufacturer or product family.
Lightweight Design for Professional Camera Rigs
A professional camera rig can quickly accumulate significant additional weight from a cage, monitor, monitor mount, microphone, battery system, handles, and cables. Keeping each individual component as light as possible therefore has practical benefits.
The SmallRig 3040 HDMI Cable 4K has a net weight of approximately 12 ± 5 grams. Its overall dimensions are around 350 × 18.9 × 9.5 mm, with the 350 mm measurement corresponding to its 35 cm cable length.
Its very low weight makes it particularly suitable for compact mirrorless camera rigs where unnecessary bulk and mass should be minimized.
Suitable for Gimbals and Compact Video Setups
A short and flexible HDMI cable can also be useful in more complex camera configurations where space is limited. On a gimbal or tightly built camera cage, a conventional thick HDMI cable can be awkward because its stiffness may complicate routing and place additional mechanical stress around the connectors.
With its 3.6 mm outer diameter, the SmallRig 3040 HDMI Cable 4K is thinner and more flexible than a conventional HDMI cable, making it easier to route around a compact rig.
When using the cable with a gimbal, always make sure that it does not restrict the movement of any axis or interfere with motors or other moving components.
Technical Specifications
SmallRig 3040 HDMI Cable 4K is a Mini HDMI Type-C male to HDMI Type-A male video cable with a length of 35 cm and an outer diameter of approximately 3.6 mm. According to SmallRig specifications, the cable supports HDMI 2.0 and video signals up to 4K 60 Hz. Its ultra-slim construction makes it more flexible than a conventional HDMI cable and particularly well suited to compact camera rigs.
The cable measures approximately 350 × 18.9 × 9.5 mm and has a net weight of around 12 ± 5 grams. The package measures approximately 106 × 98 × 33 mm and weighs around 41 ± 5 grams. The package includes the HDMI cable and a cable tie.
Its 35 cm length, low weight, and 3.6 mm diameter make it primarily a camera-rig-focused HDMI solution rather than a conventional long HDMI cable.
A Practical Addition to a Professional Videographer’s Kit
The quality of a camera rig often depends on small details. A powerful camera and high-quality monitor are less convenient to use if the cable connecting them is unnecessarily long, rigid, or bulky.
The SmallRig 3040 HDMI Cable 4K addresses this with a simple and purpose-built design. Its 35 cm length is ideal for devices positioned close together, the 3.6 mm diameter keeps the cable flexible, and HDMI 2.0 with support for up to 4K 60 Hz makes it suitable for modern video workflows.
This makes the cable a practical choice for professional videographers, content creators, filmmakers, and photographers who use an external monitor with their camera.
Why Choose SmallRig 3040 HDMI Cable 4K?
SmallRig 3040 HDMI Cable 4K is a well-designed choice for users who need a compact Mini HDMI to HDMI connection between a camera and an external monitor, recorder, or other HDMI device. Its key advantages include a camera-rig-optimized 35 cm length, an ultra-slim 3.6 mm outer diameter, HDMI 2.0 support, and the ability to carry video signals up to 4K 60 Hz.
Low-profile connectors help preserve access to neighboring camera ports, while the thin and flexible construction makes the cable easier to route even around tightly built camera cages. The included cable tie helps keep the cable organized both during use and transport.
If your camera has a Mini HDMI Type-C output and you want to connect it to a monitor or other video device with a full-size HDMI Type-A input, the SmallRig 3040 HDMI Cable 4K offers a compact, lightweight, and professionally optimized solution.
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