| Items | Gen 1 | Gen 2 |
| OS | Windows Only | Both Windows and Linux (NDA is required) |
| Input interface | the same | |
| output interface | PCIe1.0 | PCIe2.0 (compatible with PCIe1.0) |
| Input features | ||
| auto detect the input signals | Limited support (SD signals needs manual settings) | support all signal types |
| auto link the audio input | No | Yes>（also support manual setting>） |
| support Crossbar | No | Yes |
| maximum resolutions | 1080p | 2K*2K (resolutions for films) |
| Comparison when capturing VGA&component | ||
| support compressed audio input | No | Yes |
| support comtomized EDID | No | Yes |
| Comparsion when capturing HDMI | ||
| support compressed audio input | No | Yes |
| support color depth | 8bits | 8/10/12bits |
| support different color spaces | about 7~8 color spaces | 13 color spaces, and more when using SDK |
| support the extraction of channel data | No | Yes |
| support the extraction of time code | No | Yes (Sony/Canon DSLR time code) |
| Comparsion when capturing SDI | ||
| compatible with more SDI standards | 3G-A only | 3G-A,3G-B |
| support different color spaces | about 7~8 color spaces | 13 color spaces, and more when using SDK; especially 4:4:4 10 bits |
| Comparison of video processing | ||
| two video processing engines | No | Yes (more processing bandwidth) |
| Other comparisons | ||
| CPU Usage when capturing multi-channel inputs | High | Low |
| multiple device on one PC | Yes | Yes, the rotary switch to identify each card. All the options can by controled by global level, product level and device level. |
| multi stream output | Customization is required, and consum CPU | support any number of output streams for one input channel |
| Driver installatin | Iinstallation is reuqired for each card | Universal driver, only need to install the driver one time and when new card is installed, the driver will install itself automatically |
| capture latency | 1 frame | support AMD DirectGMA, Support Nvidia GPUDirect,low latency mode and partial notification feature; provide SDK to decrease the lantecy due to application |
| OSD | No | Yes |
| hardware timestamp | No | Yes |
| SDK | DiretShow only | DirectShow, DirectKS and V4L2, ALSA |
| Firmware installation | Installation is required for different cards | Click the firmware upgarde software, automatically search and upgrade for all cards. |
| Mounting holes | No | Yes |
| LED indicator | No | Yes |
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