Free tools Windows power users keep installed
One-click scans. No signup required.
To stream 4K at 60 fps from OBS on a Mac, enable live streaming on your YouTube channel, connect OBS to a stream in YouTube Live Control Room, set OBS to 3840×2160 at 60 fps, then choose a supported encoder and a stable ingest bitrate. YouTube recommends 50 Mbps for H.264 or 35 Mbps for AV1 or H.265/HEVC at 4K60. Those are YouTube ingest recommendations—not a guarantee that a particular Mac or internet connection can sustain the stream.
The right encoder depends on your Mac: OBS documents H.264 streaming through Apple VideoToolbox on Apple Silicon and recommends x264 for streaming on Intel Macs. Test the complete scene and connection before relying on it for a broadcast.
Before you start: check the channel, Mac, and connection
- Enable YouTube Live early. If the channel has never streamed before, first-time activation may take up to 24 hours. Enable it ahead of your planned broadcast. See YouTube’s encoder setup guide.
- Check your Mac and OBS version. OBS lists macOS 11 or later and an Intel or Apple Silicon CPU as basic macOS requirements. Meeting them does not certify a Mac for a demanding 4K60 scene; performance depends on the encoder, resolution, frame rate, and scene complexity. See OBS system requirements.
- Check the actual upload connection. You need stable upload capacity for the selected bitrate, plus room for normal network variation. A speed test is only a snapshot; validate the connection with a representative test stream.
- Confirm the source can supply 4K60. Check the camera, capture device, screen source, and scene configuration. Upscaling a lower-resolution source to 3840Ă—2160 does not add source detail.
Install OBS on macOS
- Download the official macOS OBS Studio DMG and open it.
- Drag OBS into the Applications folder, then launch it. Follow the macOS prompts that appear.
- In OBS, build the scene you intend to broadcast and confirm that its sources appear and behave as expected. The scene itself affects the workload, so test the real arrangement rather than an empty scene.
See the OBS macOS installation instructions if you need the installation details for your system.
Create a YouTube stream and connect OBS
- Open YouTube Live Control Room and create or schedule a stream.
- Open the stream settings and copy the stream URL and stream key.
- In OBS, open the Stream settings, select the available YouTube connection method or enter the stream URL and key, and save the connection. Interface labels may vary by OBS version.
- Keep the key private. It authorizes an encoder to send video to your channel. YouTube supports creating a custom stream key that can be reused when appropriate. See YouTube’s live stream settings help.
Set OBS video output to 4K60
- In OBS video settings, set both the base (canvas) resolution and the scaled output resolution to 3840Ă—2160.
- Set the common frame rate to 60 fps.
- In Output settings, select an encoder supported by your Mac and set rate control to CBR (constant bitrate).
- Set the keyframe interval to 2 seconds. YouTube recommends two seconds and specifies a maximum interval of four seconds.
- Choose an ingest bitrate that matches the selected codec and that your upload connection can sustain steadily. The figures below are YouTube’s current live-ingest recommendations for 4K/2160p at 60 fps, not prerecorded-video upload recommendations.
| YouTube ingest codec | YouTube-listed minimum | YouTube recommendation |
|---|---|---|
| AV1 or H.265/HEVC | 10 Mbps | 35 Mbps |
| H.264 | 14 Mbps | 50 Mbps |
These values are YouTube guidance, not independently measured performance figures. The codec options available in OBS depend on the encoder and Mac; do not assume that every codec in YouTube’s ingest guide is available through every Mac encoder. YouTube lists H.264, H.265/HEVC, and AV1 as ingest codecs, recommends RTMP/RTMPS, and prefers RTMPS where available. Its guide also specifies CBR and the keyframe guidance above. See YouTube’s live encoder settings, bitrates, and resolutions.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Choose the encoder for your Mac
Apple Silicon: VideoToolbox with H.264
OBS documents Apple VideoToolbox streaming with H.264 on Apple Silicon. Hardware encoding can reduce CPU workload, but it does not guarantee that the full scene will render and encode without dropped frames. The specific chip, cooling, video sources, overlays, browser sources, and other active workloads can affect results.
Intel Mac: x264
OBS directs Intel Mac users to x264 for streaming. OBS says the Intel VideoToolbox streaming path does not support the constant-bitrate mode required by most streaming services. If x264 cannot keep up with your scene, simplify the scene or test a lower output resolution or frame rate.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
See OBS’s hardware encoding guidance for its documented distinction between Apple Silicon and Intel Mac streaming.
Configure audio and SDR color
- Stereo: Use AAC audio at 44.1 kHz for a straightforward stereo stream, following YouTube’s encoder guidance.
- 5.1 surround: YouTube lists 48 kHz for 5.1 audio and supports 5.1 over RTMP/RTMPS only with AAC.
- SDR color: YouTube recommends Rec. 709 with 8-bit depth for SDR.
These are SDR settings. HDR has separate format, bit-depth, encoder, and configuration requirements, so do not apply this basic SDR recipe to an HDR broadcast.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchRank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Test the stream before the event
- Start an unlisted or private test if that suits your event and channel setup.
- Use the same kinds of movement, audio, sources, overlays, and scene complexity planned for the real broadcast.
- Check the Live Control Room preview, stream health, picture, and sound. Confirm that the bitrate remains stable on the actual upload connection.
- Watch for dropped frames, encoder overload, audio problems, and stream-health messages. If performance is unstable, reduce scene complexity or lower resolution or frame rate, then run the test again.
- Monitor stream health during the actual broadcast. YouTube advises: “Make sure to test before you start your live stream.”
YouTube says 4K/2160p live streams use normal latency; the low-latency option is unavailable at that resolution. If your program depends on near-real-time audience interaction, account for that delay when planning it. Testing and latency guidance are in YouTube’s live encoder settings guide.
Troubleshoot common 4K60 problems
| Symptom | Likely cause | What to check or change |
|---|---|---|
| OBS cannot connect or YouTube receives no video | Live streaming is not enabled, or the stream URL or key is incorrect. | Confirm channel activation in YouTube Studio, then verify the URL and key in OBS. If this is the channel’s first live stream, activation may take up to 24 hours. |
| Stream health reports an unstable connection | The connection cannot sustain the selected bitrate consistently. | Check the actual upload connection, prefer RTMPS where available, and test again at a bitrate the connection can sustain. A speed test alone does not validate a live stream. |
| OBS reports encoding overload or the stream drops frames | The Mac may be struggling with the encoder, resolution, frame rate, or scene complexity. | On Apple Silicon, try the documented VideoToolbox H.264 option; on Intel, use x264. Simplify overlays or sources, close unnecessary workloads, or lower the output resolution or frame rate and retest. |
| Picture looks soft despite a 4K output setting | The source may be lower resolution, or the selected bitrate may be insufficient for its detail and motion. | Check the source and capture chain’s actual resolution and frame rate. Upscaling does not create detail; retest with an appropriate bitrate and representative motion. |
| Audio is missing or in the wrong format | OBS audio routing or format does not match the intended stereo or surround setup. | Check the active audio source and meters in OBS, then verify that the stream preview contains sound. For YouTube’s listed settings, use AAC and 44.1 kHz for stereo; 5.1 over RTMP/RTMPS requires AAC and uses 48 kHz. |
Optional hardware: when a capture card is relevant
A capture card is not required for screen-only streaming. Consider an HDMI capture card only if you need to bring a camera or console with HDMI output into OBS. Confirm the specific device’s Mac compatibility and 4K60 capabilities with its manufacturer before buying; those details are device-specific.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Or let it run in the cloud
If your goal is to keep uploaded video looping on YouTube rather than broadcast a live camera or interactive OBS scene, StreamNeo is a cloud option: upload a recording or build a playlist, add your YouTube stream key, and go live. It plays uploaded videos to YouTube; it is not a camera-based streaming tool.
- Your computer and home connection do not have to stay on for the stream to continue.
- Every slot streams the uploaded quality up to 4K 60fps at one flat price per slot, without re-encoding or quality tiers.
- Automatic recovery is included if YouTube drops the stream.
- The first day is free with no card required.
The Monthly price is $9.99 per month. Start your free StreamNeo day.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
