XtremeLC-HD
Single-Channel HDMI Capture Card, Low Profile PCIe
| Board Format | PCIe Gen 1 x4 plug-in card |
|---|---|
| Dimensions | 103mm x 64mm (l x h) |
| Connector | HDMI |
| Pixel Rate | 297 Mpixel/s |
| Maximum Capture Resolution | 3840×2160p @30Hz |
We ship worldwide. UK prices include 20% VAT; orders outside the UK are charged without VAT. Standard 3-year warranty.
When a PC, camera, games console or media player needs to go into streaming or recording software, and the computer is a small or low-profile build, you need a capture card that actually fits. The XtremeLC-HD is a low-profile PCIe card with one HDMI input. It captures up to 4K at 30 frames per second with the HDMI audio, and shows up in your software as an ordinary video source.
The XtremeLC-HD captures up to 3840×2160 at 30Hz from a single HDMI input, with a 297 Mpixel/s pixel clock. Scaling and colour conversion happen on the card itself, so the computer receives the size and format your software asks for without spending processor time on it. A 4K source needs to send at 30 frames per second or less; for 4K at 60, see the XtremeDV-UHD2 or XtremeDV-HD4+.
Inputs
- HDMI
- One HDMI input, up to 297 Mpixel/s, which covers 3840×2160 at 30Hz. If your source is copy-protected (HDCP), check with us before ordering.
- Audio
- The stereo audio carried in the HDMI signal is captured with the picture: 16-bit PCM at 44.1, 48 or 96kHz.
Outputs
- To the computer
- Video goes across the PCIe bus at up to 800 MB/s. The card converts colour on board to 30, 24 or 16-bit RGB (4:4:4), 16-bit YUV (4:2:2), or 12-bit YUV, NV12 and YV12 (4:2:0) as your software requests.
- Scaling
- Hardware up and down scaling, so a 4K source can be handed to your streaming software at 1080p without changing anything at the source.
- Latency
- One frame plus the transfer of the last line.
Applications
- Lecture and presentation capture
- A presenter laptop or document camera into a compact lecture capture PC.
- Streaming and live events
- A camera or vision mixer output into an OBS or vMix machine.
- PC and games console capture
- A second PC or console recorded or streamed from a capture PC.
- Medical and simulation systems
- Built into small form factor appliances where a full-size card won't fit. It draws about 3.3W at most.
- More channels
- Fit more than one card in the same PC when you need more inputs.
Installation and software
- The card
- Low profile, 103 × 64mm, PCI Express Gen 1 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
- The input appears as a DirectShow or Media Foundation source. It is tested with OBS, vMix, Wirecast, VLC and Microsoft Media Encoder.
Range and alternatives
- XtremeLC-HD2 adds a second HDMI channel on the same low-profile card (channel 1 up to 4K at 30, channel 2 up to 1080p60). XtremeLC-SDI is the same idea for an SD, HD or 3G-SDI source.
- For 4K at 60, see the Digital Capture Cards (XtremeDV). 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 1 x4 plug-in card |
|---|---|
| Dimensions | 103mm x 64mm (l x h) |
| Connector | HDMI |
| Pixel Rate | 297 Mpixel/s |
| Maximum Capture Resolution | 3840×2160p @30Hz |
| Transfer Rate | 800MB max DMA transfer rate |
| Audio Support | Stereo PCM via HDMI, 16-bit, 44.1/48/96kHz |
| OS Support | Windows 10, Windows 11, Windows Server 2019 and 2022, Linux (V4L driver) |
| Power | 3.3V at 1A maximum (about 3.3W) |
| Latency | One frame plus the transfer of the last line |
| Operating Temperature | 0 to 35°C / 32 to 96°F |
| Warranty | 3 years |
Can the XtremeLC-HD capture 4K at 60?
No. It captures up to 3840×2160 at 30Hz. For 4K at 60 from HDMI, choose the XtremeDV-UHD2 (two 4K60 HDMI 2.0 inputs) or XtremeDV-HD4+.
Does it work with OBS and vMix?
Yes. The input appears as a standard DirectShow / Media Foundation source 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, and draws about 3.3W at most. Tell us the PC model if you want us to check the fit and bracket before you order.
Can I fit more than one?
Yes. More than one card can be installed in the same PC for more capture channels.
Can I use it in a VSN video wall controller?
Yes. The XtremeLC-HD 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.

