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DTA-2178 - Eight 12G-SDI/ASI ports for PCIe  


Eight 12G-SDI/ASI ports for PCIe

For only €995 your PC can transmit or receive 8 SDI/ASI signals simultaneously. With its 12G-SDI capability, you can receive up to 8 3G-downscaled SDI signals or up to 2 real 12G-SDI signals. The card can be configured for a variety of other SDI/ASI-processing applications.


Key Characteristics

Ports 8x 3G-SDI/ASI in/out
1x genlock in
Features 10-bit full frame access
Low latency
A/V/anc extraction/insertion
Scaling: 1/4, 1/16
API DekTec Matrix API® 2.0

(Matrix API is part of DTAPI)


Connectors 9x 75-Ω micro BNC
Cable length ASI/SD-SDI - 350m
HD-SDI - 200m
3G-SDI - 150m
6G-SDI - 55m
12G-SDI - 50m
PCI Express Low-profile PCIe gen3 x8


Link 12G-SDI - SMPTE 2082
6G-SDI - SMPTE 2081
3G-SDI - SMPTE 424M (A+B)

12G-SDI and QUAD link 4K functionality requires a specific firmware variant to be configured

4K multi-link SMPTE 425-5
Video formats 2160p, 1080p, 1080psf
1080i, 720p, 525i, 625i

All common formats supported

DVB-ASI EN50083-9 (coax)
0 to 214 Mbps

PC Support

OS Windows 7, 8, 10
Windows Server 12, 16, 19
Linux ≥2.6.18, 3.x, 4.x, 5.x
Processor Core i5 minimum
Core i7 recommended

Or equivalent AMD CPUs


StreamXpress Playout TS- and SDI files
SpRcApi StreamXpress remote-control API for automated playout
StreamXpert Our industry-standard transport-stream analyzer
SdEye SDI analyzer for detailed inspection of audio, video and ancillary data
VF-REC SDI/TS recorder with looping, scheduling and more
DekTec SDKs Create your own application


Eight 12G-SDI/ASI ports for PCIe.
Eight 12G-SDI/ASI ports for PCIe with StreamXpert Lite and StreamXpress player software.
Eight 12G-SDI/ASI ports for PCIe with StreamXpert analyzer and StreamXpress player software.
Eight 12G-SDI/ASI ports for PCIe with SdEye and StreamXpert analyzer and StreamXpress player software.
Eight 12G-SDI/ASI ports for PCIe with VF-REC stream recorder, SdEye and StreamXpert analyzer and StreamXpress player software.

Prices exclude applicable sales tax, shipping charges and customs duties. Quantity discounts may be available, please request a quotation.


  • Ports can be fully configured from software as a) 8x independent 3G-SDI/ASI (or downscaled 12G-SDI), b) 2x 12G-SDI, or c) 2x quad-link 4K.
  • External synchronization of SDI outputs with analogue genlock port that accepts bi- and tri-level sync signals.
  • Eight independently configurable ports on a single low profile PCIe card!


  • Software-based UHD decoder and/or encoder with single 12G-SDI or quad-link 3G-SDI interfacing.
  • 4K decoder with downscaled 3G-SDI monitoring output.
  • Multi-port SDI and/or ASI applications, e.g.:
    • Live production mixers;
    • Transport-stream multiplexers;
    • SDI multi viewers;
    • Multi-channel transcoding to/from IP.

DekTec Matrix API® 2.0

The Matrix-API framework decodes incoming SDI data into pixels (in a programmable format), audio samples and ANC data structures. When a new frame has been received, the framework calls a user-supplied "frame-processor callback" for processing of the data. The user callback can create output video, audio and ANC data, which is encoded by the framework into SDI frames.

Synchronization of multiple input streams is straightforward: The video/audio/anc data of all SDI frames supplied to the callback function have the same arrival time by definition. Past frames can be accessed by an integer frame index. The framework ensures that if frames from different input ports have the same frame index, they have entered the system at the same time instance.

Related Products

DekTec Matrix API® 2.0 supports the DTA-2178 and all products listed below. Applications designed for one of these cards will run virtually unaltered on any of the other cards.

DTA-2178 Bird's Eye View