XtremeLC-HD2
Dual-Channel HDMI Capture Card, Low Profile PCIe
| Board Format | PCIe Gen 2 x4 plug-in card, low profile |
|---|---|
| Dimensions | 103mm x 64mm (l x h) |
| Connector | HDMI (dual channel) |
| Pixel Rate | Channel 1: 297 Mpixel/s — Channel 2: 165 Mpixel/s |
| Maximum Capture Resolution | Channel 1: 3840×2160p @30Hz — Channel 2: 1920×1080p @60Hz |
We ship worldwide. UK prices include 20% VAT; orders outside the UK are charged without VAT. Standard 3-year warranty.
The XtremeLC-HD2 is a low-profile PCIe capture card with two independent HDMI inputs, for small PCs that need to capture two sources at once, such as a presenter camera and a laptop.
Channel 1 captures up to 3840×2160 at 30Hz (297 Mpixel/s); channel 2 captures up to 1920×1080 at 60Hz (165 Mpixel/s). Both run independently and both carry their own stereo audio. Scaling and colour conversion happen on the card, so each channel arrives at the size and format your software asks for.
Inputs
- HDMI channel 1
- Up to 3840×2160 at 30Hz.
- HDMI channel 2
- Up to 1920×1080 at 60Hz.
- Audio
- Stereo audio from each HDMI input, captured as 16-bit PCM at 44.1, 48 or 96kHz. If a source is copy-protected (HDCP), check with us before ordering.
Outputs
- To the computer
- Up to 1.6 GB/s across the PCIe bus. Each channel is a separate video source, with colour converted on board to RGB (4:4:4), YUV (4:2:2) or YUV, NV12 and YV12 (4:2:0).
- Scaling
- Hardware up and down scaling on each channel.
- Latency
- One frame plus the transfer of the last line.
Applications
- Lecture capture
- Presenter camera on one channel, the lecturer's laptop on the other.
- Streaming and gaming
- A console or second PC plus a camera into one OBS or vMix machine.
- Medical and simulation systems
- Two sources in a compact appliance. It draws about 5W at most.
- More channels
- Fit more than one card for more inputs.
Installation and software
- The card
- Low profile, 103 × 64mm, PCI Express Gen 2 x4. It fits a x4, x8 or x16 slot.
- Drivers
- The EMS unified driver covers Windows 10, Windows 11, Windows Server 2019 and 2022, and Linux (V4L driver).
- Software
- Each input appears as a DirectShow or Media Foundation source. Tested with OBS, vMix, Wirecast, VLC and Microsoft Media Encoder.
Range and alternatives
- XtremeLC-HD is the single-channel version, for one HDMI source. XtremeLC-SDI takes one SDI source.
- For two 4K60 HDMI inputs, see XtremeDV-UHD2; for four HDMI channels, XtremeDV-HD4+. XtremeLC cards work in standalone PCs, appliances and VSN video wall controllers.
Watch the range video
XtremeLC compact capture cards
Low-profile HDMI and SDI capture: one card in a small PC, several for more inputs, or inside a VSN video wall controller.
Plays from YouTube when you press play. Watch on YouTube
| Board Format | PCIe Gen 2 x4 plug-in card, low profile |
|---|---|
| Dimensions | 103mm x 64mm (l x h) |
| Connector | HDMI (dual channel) |
| Pixel Rate | Channel 1: 297 Mpixel/s — Channel 2: 165 Mpixel/s |
| Maximum Capture Resolution | Channel 1: 3840×2160p @30Hz — Channel 2: 1920×1080p @60Hz |
| Transfer Rate | 1.6GB max DMA transfer rate |
| Audio Support | Stereo PCM per HDMI channel, 16-bit, 44.1/48/96kHz |
| OS Support | Windows 10, Windows 11, Windows Server 2019 and 2022, Linux (V4L driver) |
| Power | 3.3V at 1.5A maximum (about 5W) |
| Latency | One frame plus the transfer of the last line |
| Operating Temperature | 0 to 35°C / 32 to 96°F |
| Warranty | 3 years |
Are both channels 4K?
No. Channel 1 captures up to 3840×2160 at 30Hz; channel 2 up to 1920×1080 at 60Hz.
Can both channels be used at the same time?
Yes. The two channels are independent and each appears as its own video source in your software.
Does it work with OBS and vMix?
Yes. Both inputs appear as standard DirectShow / Media Foundation sources and the card is tested with OBS, vMix, Wirecast and VLC.
Will it fit a small form factor PC?
It is a low-profile card, 103 × 64mm, on a PCI Express x4 connector, drawing about 5W at most. Tell us the PC model if you want us to check the fit.
Can I use it in a VSN video wall controller?
Yes. The XtremeLC-HD2 fits a VSN chassis and works with VigiControl like the other Xtreme capture cards.
What warranty does it have?
A standard 3-year warranty, with a 5-year extended warranty available.

