4K HDMI playback for commercial displays
The Colorlight A4K is a networked media player for digital signage, including retail and advertising displays. It delivers HDMI output up to 3840 × 2160 at 30Hz and supports H.264, H.265 and VP9 video decoding. PlayerMaster provides tools for program editing, scheduling and publishing.
A4K specifications
| Parameter | Specification |
|---|---|
| Maximum display output | 3840 × 2160 at 30Hz |
| Display connector | HDMI 2.0 output; HDCP 1.4/2.2 support |
| Storage | 8GB installed; 4GB user-available |
| System memory | 2GB DDR4 |
| Documented video decoding | One 4K video or up to two HD videos simultaneously |
| Network | Gigabit LAN; dual-band 2.4GHz/5GHz Wi-Fi; 4G configuration to be confirmed |
| USB ports | 2 × USB 2.0; 1 × USB 3.0; Type-C for setup and program transmission |
| Audio | 3.5mm stereo output |
| Operating voltage | DC 5–12V / 2A |
| Rated power consumption | 15W |
| Dimensions / weight | 215 × 94 × 32mm / 0.57kg |
Layouts, networking and installation
Combine video, pictures, text, clocks and other supported materials in adjustable windows. USB plug-and-play, wired networking and Wi-Fi offer several content-update methods. Scheduled commands and NTP synchronization support managed playback across installations.
The specification separately describes four layout video windows and a decoding limit of one 4K or two HD videos. Do not interpret the layout count as four simultaneous 4K streams. For an LED wall, check the downstream HDMI control system; the A4K LAN port is described as a network connection.
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Frequently asked questions
Does the A4K output 4K at 60Hz?
The linked V1.1 specification lists a maximum output of 3840 × 2160 at 30Hz. Its HDMI 2.0 port designation should not be taken as a claim of 4K at 60Hz output.
Can the A4K connect directly to LED receiving cards?
The documented display output is HDMI. The Gigabit Ethernet port is for LAN access, not a documented LED receiving-card output. An LED wall therefore needs a compatible HDMI-input control system between the player and the screen.
How much storage does the A4K provide?
It has 8GB of installed storage, with 4GB available to the user. Programs can also be updated or played from a USB flash drive.
Is 4G connectivity included in every A4K?
The specification supports 4G networking but identifies the 4G antenna connections as optional. Confirm the mobile-network hardware supplied with the unit and the required SIM and network service.
Which software manages A4K content?
The specification lists PlayerMaster for local or cloud screen management and program editing, ColorlightCloud for web-based publishing and monitoring, and LED Assistant for mobile control. Confirm current service availability and software compatibility for the intended deployment.







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