Here are detailed specifications for X1 set-top boxes. You can expect consistent capabilities across all devices, but older devices may have slower performance and may not have access to advanced media playback features like 4K and Dolby Atmos.
All set-top boxes are powered by RDK Firmware. Learn about RDK.
To learn what HTML language features are supported on each set-top box, check out Caniuse. Using the filter to the right of the search bar, you can sort results by HTML5 and a selected status code. To learn about status code meanings, visit Contributing to the Caniuse data.
Feature | Entry Level Devices | Mid-Range Devices | High-End Devices |
|---|---|---|---|
Available Memory | 190 MB | 190 MB | 190 MB |
Network Protocol | IPv6 | IPv6 | IPv6 |
Browser | Webkit (WPE) | Webkit (WPE) | Webkit (WPE) |
Video Decode | mp4, mp2ts, x- motion-jpeg, rtsp+h264, mp4v | mp4, mp2ts, x- motion-jpeg, rtsp+h264, mp4v | mp4, mp2ts, x- motion-jpeg, rtsp+h264, mp4v |
h.264 (AVC) | supported | supported | supported |
h.265 (HEVC) | not supported | not supported | partial support |
VP8 | supported | supported | supported |
VP9 | not supported | not supported | not supported |
Streaming Protocol | HLS, DASH | HLS, DASH | HLS, DASH |
Alpha Blending | supported | supported | supported |
4K/UHD Support | not supported | not supported | supported |
HDR Support | not supported | HDR10 | HDR10, Dolby Vision 8.1 |
Audio Formats | mpeg, eac3, mp3 | mpeg, eac3, mp3 | mpeg, eac3, mp3 |
Audio Decode | AC3, E-AC3, MPEG1, MP3, AAC, LPCM | AC3, E-AC3, MPEG1, MP3, AAC, LPCM | AC3, E-AC3, MPEG1, MP3, AAC, LPCM |
Dolby Decoder | MS11, MS12 - Config C | MS 12- Config C | MS11, MS12 - Config C |
Atmos Passthrough | supported | supported | supported |
Atmos Mixing | not supported | not supported | not supported |
Image Formats | jpeg, png | jpeg, png | jpeg, png |
Max Image Size | 2048x2048 | 4096x4096 | 4096x4096 |
Image Anti-aliasing | supported | not supported | supported |