LT-312
Two-channel HDMI 4Kp60 down to 720p capture card
Concurrently captures 2 HDMI inputs of any of the following standards:
- 3840 x 2160, Progressive
p60/59.94/50/30/29.97/25 with YUV422 10 to 12-Bits, YUV444 8-Bit, RGB444 8-Bit - 1920 x 1080, Progressive
p60/59.94/50/30/29.97/25 with YUV422 10 to 12-Bits, YUV444 8-Bit, RGB444 8-Bit - 1280 x 1080, Interlaced
p60/59.94/50 with YUV422 10 to 12-Bits, YUV444 8-Bit, RGB444 8-Bit - 1280 x 720, Progressive
p60/59.94/50 with YUV422 10 to 12-Bits, YUV444 8-Bit, RGB444 8-Bit
Specifications and Features
Interface
Inputs:
2 x HDMI 2.0:
Supplied with removable HDMI lock-nut
Multiple LT-300 series cards can be used per system to increase inputs
Outputs:
Compatible with PCIe Gen 2.0 x4 or greater
HDMI 2.0 Direct Out, with dynamic overlays
Video Engine
FPGA Based with DMA for minimum host load
10-bit video processing
Hardware Scaler and Decimator on every input with automatic control via inbuilt QOS
Concurrent capture of up to 4 video streams
Support for nearly all video standards from 4Kp60 down to 720p
Progressive and Interlace
Flexible Compositing
High-Rel for years of use with 24/7 loading
Signals
Auto Detection of incoming Video & Audio Standards
3D Inputs Supported
Legacy 4Kp60 via multiple SDI’s supported
Video Time Code
Software
OS:
Windows: 11, 10, 8 etc. & DirectShow
Linux: Ubuntu & Debian
HW Platforms:
AMD, Intel, ARM
Video Compression:
H.264, H.265, MP4, JPEG etc.
FFmpeg integrated
Driver Firmware:
Integrated Software Reconfigurable Hardware (SRH)
Field Updatable SRH
Software Support:
DK, and easy to use RestFull API, with support for C++, Python, C#
Command Line Interface (CLI) for getting started immediately
Demo Application for rapid HW & SW evaluation
Driver
ProductBrief
SDK
v1.4.0
1.89 MB | 12/28/2025
Changelog:
Superior Video & Audio
Enhanced playback with advanced deinterlacing and interlaced video support for smoother visuals.
MP3 and AAC audio encoding enabled for expanded compatibility and higher-quality recordings.
Smarter File Management
New auto-increment file naming and safer split recording to prevent overwriting and make file management seamless.
Expanded support for flexible recording sizes and new audio formats.
Firmware & Compatibility
Robust updates and optimizations for LT311 players and DDR memory, allowing more reliable multi-stream HD operation.
Latest Windows and Ubuntu 24.04 driver/support for optimal integration with modern systems.
Developer Experience
Refined Python and C++ SDKs with improved documentation, updated code examples, and API standardization.
Easier device programming through new JTAG & UART integration.
Performance & Stability
Faster, more accurate audio pipelines, increased system stability, and bug fixes to core services.
FFmpeg integration expanded for smoother encoding and muxing workflows.
v1.4.0
1.89 MB | 12/28/2025
