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For a 24/7 YouTube stream made with PRISM Live Studio, upload speed depends on the stream’s resolution, frame rate and codec—not on the fact that it runs all day. Using YouTube’s recommended settings and its 20% upload-bandwidth reserve, plan for about 17 Mbps of sustained available upload capacity for 1080p30 H.264 or 21 Mbps for 1080p60 H.264. These are practical targets for the stream, not a guarantee that an internet plan advertised at the same speed will deliver it consistently.
Upload-speed targets by resolution, frame rate and codec
YouTube’s recommended video bitrate is the starting point. YouTube also advises leaving 20% of upload bandwidth unused as room for fluctuations. The targets below multiply each recommended video bitrate by 1.2 and round up where useful; audio and other concurrent uploads also use bandwidth.
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| Output profile | Codec | YouTube recommended video bitrate | Upload capacity with 20% headroom |
|---|---|---|---|
| 1080p30 | AV1 or H.265 | 10 Mbps | 12 Mbps |
| 1080p30 | H.264 | 14 Mbps | 16.8 Mbps (plan for about 17 Mbps) |
| 1080p60 | AV1 or H.265 | 12 Mbps | 14.4 Mbps (plan for about 15 Mbps) |
| 1080p60 | H.264 | 17 Mbps | 20.4 Mbps (plan for about 21 Mbps) |
| 720p30 | AV1 or H.265 | 6 Mbps | 7.2 Mbps (plan for about 8 Mbps) |
| 720p30 | H.264 | 8 Mbps | 9.6 Mbps (plan for about 10 Mbps) |
| 720p60 | AV1 or H.265 | 6 Mbps | 7.2 Mbps (plan for about 8 Mbps) |
| 720p60 | H.264 | 8 Mbps | 9.6 Mbps (plan for about 10 Mbps) |
These are YouTube’s recommended live-ingestion bitrates and calculated upload targets, not PRISM-specific minimum requirements. YouTube’s guidance says to leave room for upload variation and to test your upload bitrate (YouTube encoder settings and bitrates; YouTube streaming tips). If you run parallel streams, add their bitrates together before applying the headroom; the combined demand must fit within the connection’s available upload capacity.
What the target means for a 24/7 stream
Duration does not by itself call for a higher bitrate. A stream’s upload demand is determined by its output profile and any simultaneous uploads or streams. The challenge of running it continuously is maintaining that capacity and a stable connection over time.
#1 Best Overall
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- Measure under realistic conditions: run an upload speed test while other household or workplace devices are active. YouTube recommends testing upload bitrate; a single favorable result does not establish that capacity will remain available all day.
- Leave headroom: do not plan to consume the entire measured upload capacity with the stream. Other users, cloud backups and fluctuations can push a connection over its limit.
- Check stream health: monitor YouTube’s live control room for warnings or dropped frames after the stream starts, and adjust the output profile if the connection cannot sustain it.
- Distinguish plan speed from available speed: a plan’s advertised upload rate is not proof that the streaming computer will continuously receive that much capacity.
Set PRISM Desktop’s output to match your connection
PRISM Desktop exposes bitrate settings under Settings > Output when Output Mode is set to Advanced. Resolution and frame rate are under Settings > Video. YouTube recommends CBR encoding and a two-second keyframe interval, not over four seconds; YouTube lists RTMP/RTMPS as its live encoder protocols and supports H.264, H.265 (HEVC) and AV1 (YouTube’s encoder settings).
- Choose an output profile: in PRISM, open Settings > Video and select the resolution and FPS you actually need. Use the table above to identify the corresponding YouTube bitrate for the codec you will send.
- Set the bitrate: open Settings > Output, set Output Mode: Advanced, and configure the encoder bitrate to match YouTube’s recommendation for that profile. Keep the 20% reserve available for other traffic and variation; the reserve is not extra bitrate to add to the encoder setting.
- Use the recommended encoding behavior: configure CBR and a two-second keyframe interval where those options are available in your selected PRISM encoder. Keep the interval at four seconds or less.
- Test before committing to a continuous run: start a private or unlisted test broadcast, then check YouTube stream health and PRISM for network or encoding issues. A test helps reveal whether the connection and computer can sustain the chosen output.
- Reduce demand if it struggles: lower resolution, bitrate or FPS in PRISM if network bandwidth or PC performance is strained. PRISM recommends a hardware NVIDIA or AMD encoder when a dedicated graphics card is available (PRISM Desktop streaming settings).
Improve connection stability
PRISM lists insufficient upload speed, an unstable local network and weak Wi-Fi among possible causes of disconnections. Its recommendation is to use wired LAN for more consistent transmission (PRISM disconnection guidance).
Rank #2
- Connects a USB 3.0 device (computer/laptop) to a router, modem, or network switch to deliver Gigabit Ethernet to your network connection. Does not support Smart TV or gaming consoles (e.g.Nintendo Switch).
- Supported features include Wake-on-LAN function, Green Ethernet & IEEE 802.3az-2010 (Energy Efficient Ethernet)
- Supports IPv4/IPv6 pack Checksum Offload Engine (COE) to reduce Cental Processing Unit (CPU) loading
- Compatible with Windows 8.1 or higher, Mac OS
- Connect the streaming computer to the router with Ethernet if Wi-Fi is weak or variable.
- Pause or schedule other uploads, such as cloud backups, while the stream is running.
- If wired service still cannot sustain the required upload capacity, lower the stream profile or address the internet connection; Ethernet improves the local link but does not increase the upload capacity provided by your internet service.
PRISM’s mobile guidance gives different figures—4 Mbps for 720p and 6 Mbps for 1080p—and discusses adaptive bitrate. Those are mobile recommendations, not substitutes for YouTube’s desktop encoder bitrate guidance (PRISM mobile streaming guide). PRISM also publishes mobile-specific stability ranges and advises having at least twice the listed network bandwidth; those figures should not be treated as a universal desktop threshold (PRISM mobile stability guide).
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Bandwidth determines whether the live feed can be ingested; it does not guarantee that YouTube will preserve the entire broadcast as a replay. YouTube says a live stream longer than 12 hours may not be captured at all and recommends recording a local archive as a backup (YouTube archive live streams guidance). If retaining a complete recording matters, plan a local recording and storage workflow separately from the upload-speed calculation.
Rank #3
- [Expansion Ports] The USB C to Ethernet Adapter expands the device to three USB 3.0 ports and one Gigabit Ethernet port. Provides you more peripheral ports while maintaining a stable network connection, plug and play, no driver required.
- [Gigabit Network Port] ALL-LUCKY USB Ethernet Adapter transmission rate up to 1000Mbps, also compatible with 10/100Mbps bandwidth. It allows you to enjoy a smooth and stable network connection and avoid too much lag. (Note: To reach 1Gbps, please use CAT6 or above Ethernet cable connection)
- [Convertible Connector]This usb hub with ethernet not only has USB-A connector, but also can be converted to USB-C connector, so that you can easily convert the connector according to the device port, improve the convenience of use.
- [High-Speed Data Transfer] The usb to ethernet adapter adopts USB 3.0 transmission technology, supports up to 5Gbps transmission rate, and is compatible with USB 2.0(480Gbps),USB 1.0(12Mbps), easily transfer video, files and other data for you in seconds. (Note: Maximum output current is 900mA, does not support charging devices.)
- [Widely Compatible]The usb c ethernet adapter for iMac, MacBook Pro, iPad Pro, XPS and many other devices. Compatible with Windows 11/10/8.1/8, Mac OS, iPad OS, Chrome OS.（Note: Driver is required on Win 7） It can be used in office, school, library and other occasions, compact and portable, easy to carry around.
Or let it run in the cloud
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Quick Recap
Best Value
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- INCREDIBLE PERFORMANCE - Supports full 10/100/1000Mbps gigabit ethernet performance over USB A/C's 5Gbps bus, faster and more reliable than most wireless connections. Link and Activity LEDs. USB powered, no external power required. Backward compatible with USB 2.0/1.1.✅ To reach 1Gbps, make sure to use CAT6 & up Ethernet cables.
- BROAD COMPATIBILITY - The USB A/C-Ethernet adapter is compatible with Windows 11/10/8.1/8/7/Vista/XP, Mac OSX 10.6/10.7/10.8/10.9/10.10/10.11/10.12, Linux kernel 3.x/2.6, Android and Chrome OS.Compatible with IEEE 802.3, IEEE 802.3u and IEEE 802.3ab. Supports IEEE 802.3az (Energy Efficient Ethernet).❌Do Not Support Windows RT. (NOT compatible with Nintendo Switch.)
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