Teradek Prism 873 4K 10bit HEVC/AVC 12G-SDI Decoder Card
The Teradek Prism 873 is a blade decoder card for the Prism 801 (1RU) and 802 (2RU) rack chassis, receiving HEVC (H.265) or AVC (H.264) streams over RTMP/RTMPS, MPEG-TS, or SRT from Prism, Cube, Slice, Core, and T-Rax encoders and outputting clean SDI. It decodes up to 4Kp60 in 10-bit 4:2:2 across two SD/HD/3G/6G/12G-SDI outputs, with resolution support down to 1080i for mixed-format facilities.
A built-in scaler and deinterlacer handle format mismatches automatically, and the card can take genlock signaling from the chassis to lock into an existing house reference. Two channels of embedded audio decode with AAC-LC, plus 3.5mm analog line input and output jacks for a local monitoring path. Like the 853 encoder, the 873 is a card-based building block - install exactly the mix of encode and decode channels a control room needs in one 801 or 802 chassis.
| Form Factor | Blade card for Prism 801 (1RU) / 802 (2RU) chassis |
|---|---|
| Video Outputs | 2x SD/HD/3G/6G/12G-SDI, up to 4Kp60, 10-bit 4:2:2 |
| Compression | HEVC (H.265) / AVC (H.264) |
| Streaming Protocols | RTMP/RTMPS, MPEG-TS, SRT |
| Audio | 2-channel embedded AAC-LC + 3.5mm analog I/O |
| Processing | Built-in scaler/deinterlacer, chassis genlock |
| Compatible Encoders | Prism, Cube, Slice, Core, T-Rax |
| Model | 10-2873 |












