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DTA-2179 - Twelve 3G-SDI/ASI Ports for PCIe  


Twelve 3G-SDI/ASI Ports for PCIe

A whopping twelve SDI/ASI ports on a single PCIe card, the highest density on the market. All ports are fully configurable from software, in any combination.
Ideal for applications that need a high port count, such as live production mixers.


Key Characteristics

Ports 12x 3G-SDI/ASI in/out
1x genlock in

(up to 8x simultaneous 3G-SDI)

Features DekTec Matrix API® 2.0
10-bit full frame support
Audio/video/anc extraction
Audio/video/anc insertion
Hardware scaling: 1/4, 1/16
Multi-stream synchronization


Connectors 13x 75-Ω DIN 1.0/2.3
Return loss >12dB @ 0 to 3GHz
PCI Express PCIe gen3 x16 +EXT25W

Power supply connection through 6-pin PCIe power connector


Link SD-SDI - SMPTE 259M
Video formats 525i, 625i, 720p, 1080i
1080p, 1080psf, 2160p

All common formats supported

4K multi-link SMPTE 425-5

(up to 2x 425-5 links)

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

PC Support

OS Windows 10, 11
Windows Server 16, 19, 22
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
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


DTA-2179-SLP5.123Stock: 25+
Twelve 3G-SDI/ASI ports for PCIe with StreamXpert Lite and StreamXpress player software.
DTA-2179-SXP6.249Stock: 25+
Twelve 3G-SDI/ASI ports for PCIe with StreamXpert analyzer and StreamXpress player software.
DTA-2179-SY-SXP7.071Stock: 25+
Twelve 3G-SDI/ASI ports for PCIe with SdEye and StreamXpert analyzer and StreamXpress player software.
DTA-2179-VR-SY-SXP7.950Stock: 25+
Twelve 3G-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.


  • Twelve fully independent ports, configurable from software as input or output, ASI or SDI, in SD/HD/3G or 4K mode.
  • External synchronization of SDI outputs via port 1 (digital genlock), or with analogue genlock port accepting bi- and tri-level sync.
  • Great support for writing applications with DekTec Matrix API 2.0. No need to know low-level SDI details and no need to be proficient with real-time multi-threaded programming.

Application Examples

  • Live production mixer with advanced software-based effects, mixing 10 camera inputs to a main- and clean output feed, all HD-SDI.
  • Multiviewer with a mix of compressed (ASI) and uncompressed (SDI) inputs. The hardware scaler keeps the PCIe bus load manageable.
  • Any software application that requires many inputs, in image processing, virtual reality, high-profile security, etc.

Block Diagram

The DTA-2179 features twelve independent transmit/receive channels, each consisting of a cable equalizer, ASI/SDI receiver, ASI/SDI transmitter, matrix logic, a high-performance DMA controller and a PCIe interface.

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-2179 and all products listed below. Applications designed for one of these cards will run virtually unaltered on any of the other cards.

DTA-2179 Bird's Eye View

The DTA-2179 comes in a stylish aluminum heat sink, which also protects the components on the board and keeps the board stiff.

DTA-2179 bird's eye view