Diagram in three groups: check first whether a phone app like Moblin is enough; DIY build with Jetson Nano or RK3588 and BELABOX; ready-made Kiloview P2/P3 and LiveU Solo PRO. Below them four checks: input, modems, power, and a multi-hour test

Which encoder fits a mobile stream?

An encoder takes camera and audio, compresses the signal, and sends it over one or more internet connections. Processing power and resolution matter, but so do power supply, cooling, inputs, modem connections, software upkeep, and a whole setup that has been tested and holds up.

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1. Three generations of encoders

  1. Jetson Nano 2 GB: an affordable entry point and an important part of the early DIY story. The tight memory put narrow limits on more complex setups, though.
  2. Jetson Nano 4 GB: more room for BELABOX and attached hardware. In practice the 5 V supply needed special attention: weak power supplies, unsuitable cables, or power-hungry USB devices could cause instability.
  3. RK3588 platforms: a more modern DIY base with built-in hardware video. HDMI input, USB power, susceptibility to interference, power connector, and modem options differ a lot from board to board.
Context: NVIDIA now lists the Jetson Nano and Jetson Nano 2 GB developer kits as EOL. Existing units can keep working, but they are not automatically the best starting point for a new build today.

2. DIY encoders with BELABOX

BELABOX is open software for mobile encoders. On current RK3588 boards the HDMI input can already be on the board, which, depending on the model, removes the need for an external USB capture card. Compared with the Jetson Nano, the project also cites up to 4K60 instead of 4K30, lower hardware costs, and lower power draw for the encoder platform.

The specific board still decides a lot: some models react more sensitively to cellular modems close to the HDMI signal path, deliver different amounts of power to attached USB modems, or need special handling for the SIM card and M.2 modem. Before a permanent install, test the complete setup with all cables, modems, and the planned power source for several hours.

No blanket RK3588 recommendation: "RK3588" names the processor family, not a uniform encoder. Ports, HDMI capture, power supply, and BELABOX support depend on the individual board.

3. Supported RK3588 boards at a glance

BELABOX currently lists five board variants. The rundown below deliberately focuses on the practical IRL setup and leaves out short-lived prices.

Preferred HDMI option

Radxa ROCK 5B+

Currently the best-balanced starting point for a new BELABOX build with a camera over HDMI. The board has a full-size HDMI input, USB-PD power, built-in Wi-Fi, and an M.2 B-key slot for a 4G/5G modem. According to the project, its HDMI capture is less prone to interference from nearby cellular modems than on the older variants.

Keep in mind: The HDMI input on the side needs careful cable routing. For some M.2 modems, a documented workaround may be needed for SIM detection.

Compact, no HDMI input

Radxa ROCK 5A

The smallest of the listed boards and, according to BELABOX, especially strong at powering attached USB devices. It supports USB-PD and suits RTMP input or cameras with a compatible USB webcam mode, for example.

Keep in mind: It has no HDMI input. If you want to connect a regular HDMI camera now or later, pick a different variant.

Possible alternative

Orange Pi 5 Plus

A supported variant with a full-size HDMI input, a swappable eMMC module, and two Ethernet ports. The HDMI signal path is considered less sensitive to nearby cellular modems than on the older ROCK 5B and BPI-W3.

Keep in mind: For new HDMI builds, BELABOX now prefers the ROCK 5B+. USB-PD is not supported on the Orange Pi 5 Plus in this comparison, and an unlucky modem or cable layout can disturb HDMI capture here too.

Supported, not recommended

Radxa ROCK 5B

The older ROCK 5 variant is still supported and easy to get. BELABOX can run on it in principle.

Keep in mind: The HDMI input uses the more fragile micro-HDMI connector. Powerful USB modems and radio interference on the HDMI signal path can be a problem. The higher USB-PD voltage was disabled in the BELABOX image because of boot loops with various power sources.

Supported, not recommended

Banana Pi BPI-W3

A supported larger board with a full-size HDMI input, soldered-in eMMC, and either a 12 V barrel jack or USB-C PD as power input.

Keep in mind: It is roughly twice the size of the more compact alternatives, supplies demanding USB modems with limited power, and can also show interference between cellular modem and HDMI capture. Never connect the barrel jack and USB-C at the same time.

Memory: By BELABOX's current assessment, 4 GB of RAM is enough for this use; more memory brings no visible benefit for BELABOX alone. For new setups, the RK3588 platform is preferred over the Jetson Nano.

4. Ports and power supply compared

Looking at the RK3588 chip is not enough for a stable encoder. Camera input, networking, storage, and the power at the USB ports decide whether HDMI capture and several cellular modems run reliably together.

Hardware features that matter for BELABOX
BoardHDMI inputUSB and modemsNetworkStoragePower supply
ROCK 5B+Full-size HDMIseveral USB ports; M.2 B-key for 4G/5G up to 42 mmGigabit Ethernet, Wi-Fi built inmicroSD; eMMC soldered or optional depending on versionUSB-C PD; high output for USB devices by comparison
ROCK 5Ano HDMI input2× USB 2.0, 2× USB 3.0; M.2 E-key for Wi-Fi1× Gigabit Ethernet; Wi-Fi via modulemicroSD; swappable eMMCUSB-C PD; good USB power reserves
Orange Pi 5 PlusFull-size HDMI2× USB 3.0, 2× USB 2.0; M.2 slots2× 2.5 Gbit Ethernet; Wi-Fi via modulemicroSD; swappable eMMC; NVMe possibleUSB-C without PD negotiation in the BELABOX comparison
ROCK 5BMicro-HDMIUSB 2.0/3.0; no M.2 B-key like the 5B+Gigabit Ethernet; Wi-Fi via modulemicroSD; swappable eMMCUSB-C; higher PD voltages disabled in the BELABOX image
Banana Pi BPI-W3Full-size HDMIUSB 2.0/3.0; limited power for demanding modemsEthernet; expansions depend on the boardmicroSD; eMMC soldered in12 V barrel jack or USB-C PD, never both at once

Planning USB power properly

The number of ports does not tell you how much power is available at the same time. For the ROCK 5B+, BELABOX cites up to 3 A on the USB-C port, among other things, plus separate or shared budgets on the USB-A ports. On the ROCK 5A, up to 2.3 A or 1.5 A is available depending on the port group. Orange Pi 5 Plus, ROCK 5B, and BPI-W3 have lower or more heavily shared port budgets.

With several cellular modems, a good, separately powered USB hub can make sense or even be necessary. It should be rated for continuous load and must not feed unwanted voltage back into the encoder.

Jetson and ready-made encoders

Load test before you go live: Run the camera, fan, storage, and all modems together for several hours on exactly the power bank, cables, and hubs you will use on location. Watch for undervoltage warnings, USB dropouts, HDMI glitches, temperature, and restarts.

5. Ready-made encoders from Kiloview

Kiloview P2

The P2 is a mobile H.264 encoder with an HDMI input. According to the manufacturer, it supports RTMP, SRT, RTSP, HLS, and TS over UDP, among others. For KiloLink bonding you can use two internal and two external 4G connections plus Wi-Fi; Ethernet is possible through a USB extension. The built-in battery, local recording, and web management make it a largely finished solution.

Kiloview P3

The P3 is the more modern 5G generation. It offers HDMI, 3G-SDI, and USB inputs, H.264/H.265, a touchscreen, and modular cellular and battery modules. Kiloview cites up to four 5G/4G modules plus Wi-Fi and Gigabit Ethernet, for six connection paths. Besides RTMP and SRT, further production protocols are supported.

Mind the separate ecosystem: KiloLink bonding is not the same as SRTLA. Check features, server components, licenses, and ongoing conditions directly with the manufacturer before you buy.

6. LiveU Solo PRO

The LiveU Solo PRO is a ready-made portable encoder for creators, events, and IRL streaming. It comes as an HDMI version and a combined SDI/HDMI version and, according to the manufacturer, supports resolutions up to 4K. Optional H.265/HEVC can save bandwidth if the destination fits and the feature is booked.

With LRT™ the unit can combine up to six IP connections: four external 4G/5G modems, Wi-Fi, and Ethernet. The actual bonding function is tied to the LiveU system and a paid LRT™ service. Add-on packages can include modems, data plans, and cloud features.

Budget for ongoing costs: Treat the unit, the LRT™ subscription, cellular modems, data plans, and optional services separately. Prices, regions, and scope of service can change and should be checked directly with LiveU or an authorized dealer.

7. Comparing encoders side by side

General overview: actual features can vary by board or configuration
PlatformTypeVideo inputConnectionsStrengthsKeep in mind
Jetson Nano 2 GBhistorical DIYUSB capture/camera depending on the buildUSB modems, Wi-Fi, Ethernetaffordable early entryonly 2 GB RAM, EOL, limited headroom
Jetson Nano 4 GBhistorical DIYusually USB captureUSB modems, Wi-Fi, Ethernetmore memory, lots of community experienceplan the 5 V supply and USB load carefully, EOL
RK3588 + BELABOXmodern DIYbuilt-in HDMI or USB, depending on the boardboard-dependent: USB, M.2, Wi-Fi, Ethernetmodern, flexible, often compactboard choice, EMI, USB power, and cooling
Kiloview P2ready-made 4G bonding encoderHDMI up to 1080p604G, Wi-Fi, optional Ethernetbuilt-in battery, compact all-in-oneolder H.264/4G generation, KiloLink system
Kiloview P3ready-made 5G bonding encoderHDMI, 3G-SDI, USB; HDMI up to 4K30up to 4× 5G/4G, Wi-Fi, EthernetH.265, touchscreen, modular designlarger professional setup, check costs and modules
LiveU Solo PROready-made commercial bonding encoderHDMI or SDI/HDMI; up to 4Kup to 4× 4G/5G, Wi-Fi, Ethernetcompact LiveU system, LRT™, H.265 optionalLRT™ and other features may require ongoing services

8. Which direction makes sense?

Quick decision by starting point
Your situationObvious directionClarify first
I already have a working Jetson NanoKeep using itHow it gets power, where you can get spare parts, and that the Jetson is EOL
I want to build it myself and use an HDMI cameraAn RK3588 board with HDMI input that BELABOX supportsHow many modems, how much USB power, how you cool it and route the cables
I want as little DIY as possibleKiloview P2/P3 or LiveU Solo PROWhat ecosystem, licenses, and ongoing services the manufacturer brings along
I am just getting startedFirst see whether a phone app like Moblin is enoughWhether you need your own encoder at all

9. Help choosing an encoder

Board, camera input, number and type of modems, and the planned power supply all have to fit together. If you are unsure whether to go with Jetson, RK3588, Kiloview, or LiveU, you can present your planned setup in the IRL4YOU Discord. Details about the camera, transport protocol, cellular modems, power bank, and what you will use it for help most.

Discord only opens after you click on purpose. Discord's privacy policy applies there.

10. Notes on accuracy and trademarks

The board information and comparisons are fully contained on this IRL4YOU page. Technical details can change through firmware, board revisions, services, and product variants. So check specific ports and requirements against the current documentation from the hardware maker before you buy or rebuild.

All descriptions, rundowns, tables, and the graphic on this page were created independently for IRL4YOU. No third-party comparison tables, manufacturer images, or logos are embedded.

BELABOX, NVIDIA, Jetson, Kiloview, KiloLink, LiveU, and LRT™ are trademarks or product names of their respective owners. IRL4YOU claims no official partnership with the manufacturers mentioned.

11. FAQ on choosing an encoder

Do I need a hardware encoder at all?

Not necessarily. A phone app like Moblin is often enough to start. A dedicated encoder pays off when you want to connect an external camera over HDMI or SDI, or when you need more modems and ports than a phone can give you.

Is a Jetson Nano still worth it today?

If your setup runs stably, you can keep using it. For a new build it is not automatically the best base, because NVIDIA lists the developer kits as EOL. On an existing unit, look mainly at the power supply.

Is every RK3588 board suitable for BELABOX?

No. "RK3588" is only the processor family. Whether a board has an HDMI input, enough USB power, a suitable power connector, and BELABOX support depends on the individual board. Before you buy, check that your exact board is explicitly supported. More in Setting up BELABOX.

Are Kiloview and LiveU compatible with SRTLA servers?

Not across the board. KiloLink and LRT™ are the manufacturers' own bonding systems and not the same as SRTLA. Before you buy, ask the manufacturer directly about features, server components, and licenses. Background on SRTLA is on the SRTLA page.

How do I test an encoder setup before using it?

Run the camera, fan, storage, and all modems together for several hours. Use exactly the power bank, cables, and hubs you will carry on location. Watch for undervoltage, USB dropouts, glitches in the picture, temperature, and restarts. For power, see Power Supply.

12. More hardware topics

Last technical review: · Updated: · Published by IRL4YOU