XtremeLC-SDI
Single-Channel SDI Capture Card, Low Profile PCIe
| Board Format | PCIe Gen 1 x4 plug-in card |
|---|---|
| Dimensions | 103mm x 64mm (l x h) |
| Connector | SDI-BNC |
| Maximum Capture Resolution | SD / HD / 3G at 60fps |
| Transfer Rate | 800MB max DMA transfer rate |
We ship worldwide. UK prices include 20% VAT; orders outside the UK are charged without VAT. Standard 3-year warranty.
Compare with similar cards · Find My Capture Card · SDI buyer’s guide
The XtremeLC-SDI is a low-profile PCIe capture card with one SDI input. It captures SD, HD and 3G-SDI at up to 60 frames per second, with the embedded audio, and is designed for small form factor PCs and appliances used for recording and streaming.
One BNC input takes SD-SDI (480i/576i), HD-SDI up to 1080i, 3G-SDI up to 1080p and 2K digital cinema, at up to 60 frames per second. The card detects the incoming format itself from the SDI signal, then scales and converts it on board, so the computer receives exactly the size and format your software asks for.
Inputs
- SDI
- One BNC input: SD-SDI, HD-SDI (to 1080i), 3G-SDI (to 1080p) and 2K digital cinema, at up to 60fps. The input format is detected automatically from the SDI signal.
- Audio
- The stereo audio embedded in the SDI signal is captured with the picture: 16-bit PCM at 44.1, 48 or 96kHz.
Outputs
- To the computer
- Up to 800 MB/s across the PCIe bus. Colour is converted on the card to RGB (4:4:4), YUV (4:2:2) or YUV, NV12 and YV12 (4:2:0) as your software requests.
- Scaling
- Hardware up and down scaling, so the picture arrives at the size you need.
- Latency
- One frame plus the transfer of the last line.
Applications
- Lecture capture and distance learning
- An SDI camera into a compact lecture capture PC.
- Medical and simulation systems
- Built into small appliances where a full-size card won't fit.
- Live events and streaming
- A camera or vision mixer SDI output into an OBS or vMix machine.
- More channels
- Fit more than one card in the same PC when you need more SDI 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-HD and XtremeLC-HD2 are the HDMI versions (one or two channels) on the same low-profile card.
- For four SDI channels on one card, see XtremeDV-SDI4 in the Digital Capture Cards. 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 | SDI-BNC |
| Maximum Capture Resolution | SD / HD / 3G at 60fps |
| Transfer Rate | 800MB max DMA transfer rate |
| Colour Space Conversion | 30/24/16-bit RGB (4:4:4), 16-bit YUV (4:2:2), 12-bit YUV/NV12/YV12 (4:2:0) |
| Audio Support | Stereo PCM via SDI, 16-bit, 44.1/48/96kHz |
| Video Modes | SD-SDI, HD-SDI (up to 1080i), 3G-SDI (up to 1080p), 2K Digital Cinema |
| OS Support | Windows 10, Windows 11, Windows Server 2019 and 2022, Linux (V4L driver) |
| Latency | One frame plus the transfer of the last line |
| Operating Temperature | 0 to 35°C / 32 to 96°F |
| Warranty | 3 years |
Which SDI formats does it capture?
SD-SDI (480i/576i), HD-SDI up to 1080i, 3G-SDI up to 1080p and 2K digital cinema, at up to 60 frames per second.
Does it capture the SDI audio?
Yes. The embedded stereo audio is captured as 16-bit PCM at 44.1, 48 or 96kHz.
Does it work with OBS and vMix?
Yes. It appears as a standard DirectShow / Media Foundation source and 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. Tell us the PC model if you want us to check the fit before you order.
Can I use it in a VSN video wall controller?
Yes. The XtremeLC-SDI fits a VSN chassis and works with VigiControl like the other Xtreme capture cards. For four SDI inputs on one card, see the XtremeDV-SDI4.
What warranty does it have?
A standard 3-year warranty, with a 5-year extended warranty available.

