USB Capture SDI 4K Pro

The Magewell USB Capture SDI 4K Pro is the highest-performance SDI capture device in the USB Capture family — and the only model that achieves true 4K60 SDI capture over USB, handling 12G-SDI signals at the full 4096×2160 60fps bandwidth without compromise. Where the USB Capture SDI 4K Plus is capped at 4K30 by USB 3.0, the SDI 4K Pro leverages the 20Gbps throughput of USB 3.2 Gen 2×2 to capture 4K60 from any 12G-SDI source — with a dedicated 12G-SDI loop-through maintaining the downstream signal path simultaneously, 8-channel 24-bit SDI embedded audio at 192kHz, 10-bit colour depth capture, a 700 Mpixels/s FPGA processing pipeline and capture frame rates up to 240fps at lower resolutions. From 12G-SDI 4K broadcast cameras and studio routers to remote production workflows, OB trucks and high-frame-rate sports capture — the USB Capture SDI 4K Pro delivers the maximum SDI capture capability available in a bus-powered USB dongle. Supplied by iView Data, authorised UK Magewell distributor, with full UK warranty and same-day dispatch from UK stock.

Core Functions & Capabilities

• True 4K60 SDI Capture — 12G-SDI at 4096×2160 60fps: The only USB Capture SDI device in the range that captures at the full 4K60 signal level from a 12G-SDI source — not downscaled, not capped at 30fps. The 20Gbps USB 3.2 Gen 2×2 interface carries the full 4K60 10-bit signal from the BNC input to the host in complete fidelity, matching the 12G-SDI input bandwidth without any compromise on resolution, frame rate or colour depth.
• 12G-SDI Input & Loop-Through — Full Signal Chain Integrity: The BNC input accepts SD/HD/3G/6G/12G-SDI signals at up to 4096×2160 60fps 10-bit YUV 4:2:2, and the dedicated BNC loop-through passes that same full signal simultaneously to a downstream monitor, router or vision mixer — inserting the capture device into any SDI signal chain without a splitter, without reclocking and without any interruption to the downstream path.
• 700 Mpixels/s FPGA Processing Pipeline: Onboard processing bandwidth of 700 Mpixels/s handles 4K60 capture, scaling, cropping, de-interlacing, aspect ratio conversion, colour format conversion, frame rate conversion, flip and mirror entirely on the device — the host CPU is completely uninvolved in video processing, leaving full system resources available for encoding, streaming and application workloads.
• 10-bit Colour Depth Capture: Captures at up to 10-bit colour depth — delivering genuine HDR-compatible colour fidelity from 12G-SDI sources for production workflows requiring full colour depth from the signal rather than 8-bit truncation. Capture colour formats include P010, Y210, NV12, I420, YUY2, UYVY, RGB24 and RGB32.
• Up to 240fps Capture at Lower Resolutions: Beyond 4K60, the pipeline supports capture at up to 240fps at lower resolutions — enabling ultra-high frame rate capture for sports highlights, slow-motion review and high-speed production workflows from a USB-connected device.
• 8-Channel 24-bit SDI Audio at 192kHz: Captures up to 8 channels of 24-bit SDI embedded audio at 192kHz — the highest audio specification of any USB Capture model. The 3.5mm line input adds analogue audio capture alongside SDI embedded audio, and the 3.5mm line output plays back SDI audio to headphones or a monitoring amplifier.

Key Features

• USB 3.2 Gen 2×2 — The Critical Requirement: True 4K60 SDI capture requires a host computer with a USB 3.2 Gen 2×2 port delivering 20Gbps throughput. Most modern Windows and Linux workstations and laptops include this interface. Apple Silicon Macs with Thunderbolt 4 are limited to 10Gbps USB throughput and cannot achieve 4K60 capture — Mac users should review Magewell’s supported resolutions table for macOS before purchasing.
• Broadest SDI Standard Coverage in the Range: Supports SD (ST 259), HD (ST 292), 3Ga/3Gb (ST 425), 6G (ST 2081) and 12G (ST 2082) — every SDI format from legacy SD through to the most current 12G-SDI 4K infrastructure, all from the same BNC input with automatic detection.
• USB Bus-Powered — No External Power Required: Draws max 7.2W entirely from the USB 3.2 connection — no power adapter, no mains connection. Deployable on any laptop or workstation with a USB 3.2 Gen 2×2 port in the field, in an OB truck or at a remote production position.
• Universal OS & Driver-Free Operation: Works plug-and-play on Windows 10/11/Server, macOS 10.9+, Linux (x86, x64 & ARM, kernel 2.6.35+) and Chrome OS — no driver installation required for basic use on any supported platform.
• Broad Software Compatibility: Compatible with Zoom Rooms, Microsoft Teams, Skype for Business, Google Meet, GoToMeeting, OBS Studio, XSplit, VLC, QuickTime, GStreamer and all DirectShow, V4L2 and AVCaptureSession applications — including vMix and Wirecast.
• MWCapture SDK: Full SDK for Windows, macOS and Linux — enabling custom integrations, OEM development, signal status extraction, capture configuration and direct API access for enterprise broadcast and production deployments.

Ideal For

• Remote & Laptop-Based Production — 4K60 SDI Without a Rack: Connect a 12G-SDI 4K camera, studio router output or production switcher directly to a Windows or Linux laptop and capture 4K60 in OBS, vMix or Wirecast — delivering the highest SDI capture quality available from a USB device, without a rackmount server or PCIe infrastructure.
• Broadcast Master Control — 12G-SDI Programme Monitoring: Capture 12G-SDI programme output at full 4K60 for stream monitoring, quality control recording and compliance archiving — with the 12G-SDI loop-through maintaining the signal path to downstream routers, monitors and playout systems uninterrupted.
• Live Sports Production — 4K60 High Frame Rate Capture: Capture 12G-SDI 4K60 output from sports cameras and production switchers for live streaming and slow-motion replay workflows — with up to 240fps capture at HD resolutions providing the temporal resolution required for high-speed sports content.
• OB Trucks & Mobile Production — Flagship SDI Capture: The highest-specification USB SDI capture device for OB and mobile production — bus-powered, no external power, 12G-SDI loop-through stays in the signal chain, and true 4K60 capture to any production laptop or workstation over a single USB-C cable.
• Studio & Post Production — 12G-SDI Ingest at 4K60: Ingest 12G-SDI 4K60 material from routers, VTRs and production switchers into editing and grading workstations via USB — with 10-bit colour depth preserving the full colour fidelity of the source for HDR post-production workflows.
• Video Conferencing — 4K SDI Broadcast Camera on Zoom & Teams: Use any 12G-SDI broadcast camera as the video source on Zoom Rooms or Microsoft Teams on a Windows workstation — delivering the highest quality USB SDI camera input available to remote participants without specialist AV infrastructure beyond the capture device itself.

USB Capture Family — Which Model Is Right for You?

HD capture — no loop-through needed

HD capture — with loop-through & analogue audio

4K capture — USB 3.0 (up to 4K30 capture)

4K capture — USB 3.2 Gen 2×2 (true 4K60 capture)

Multi-source switching

Magewell Part Number: 32160. Full technical specifications are available on the Specifications tab above. True 4K60 SDI capture requires a host computer with USB 3.2 Gen 2×2 (20Gbps) — check your system specifications before purchasing. macOS users are limited to reduced capture performance due to Thunderbolt 4 / USB 3.2 Gen 2×2 incompatibility on Apple Silicon. See Magewell’s supported resolutions tables for Windows/Linux and macOS for full details. Supplied by iView Data, authorised UK Magewell distributor, with full UK warranty and same-day UK dispatch.