LT-311
Four-channel SDI 4Kp60 down to 720p capture card
Concurrently captures 4 inputs of any of the following standards:
- 4096 x 2160, Progressive
p60/59.94/50/48/30/29.97/25/24/23.98 via 12G-SDI or 6G-SDI - 3840 x 2160, Progressive
p60/59.94/50/48/30/29.97/25/24/23.98 via 12-SDI or 6G-SDI - 1920 x 1080, Progressive
p60/59.94/50/48/30/29.97/25/24/23.98 via 3G-SDI level-A or HD-SDI - 1280 x 1080, Interlaced
p60/59.94/50 via 3G-SDI level-A - 1280 x 720, Progressive
p60/59.94/50 via HD-SDI
Specifications and Features
Interface
Inputs:
4 x SDI’s:
HD-SDI
3G-SDI Level-A
6G-SDI
12G-SDI
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
Field Upgradable Software Reconfigurable Hardware (SRH)
Concurrent capture of up to 4 video streams
Hardware Scaler and Decimator on every input with automatic control via inbuilt QOS
Support for nearly all video standards from 4Kp60 down to 720p
Progressive and Interlace Standards Supported
Flexible Compositing
High-Rel for years of use with 24/7 loading
10-bit video processing
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
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 Firmware:
Field Upgradable Software Reconfigurable Hardware
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
