Recommended Free Tools
For a pre-recorded broadcast set up in Castr, the playlist limit is 2 files on Starter or Standard, 10 on Premium, and 15 on Ultra, according to Castr’s product page accessed October 3, 2026. These are Castr per-stream playlist limits—not a verified limit for playlists created directly on YouTube.
How many videos can you add to a Castr pre-recorded stream?
| Castr plan | Files allowed in one pre-recorded stream playlist | Maximum file duration listed by Castr |
|---|---|---|
| Starter | 2 | 60 minutes |
| Standard | 2 | 120 minutes |
| Premium | 10 | 240 minutes |
| Ultra | 15 | 240 minutes |
Castr’s current product page, accessed October 3, 2026, lists these playlist counts and durations. The counts apply to files in a single pre-recorded Castr stream playlist; they should not be read as the number of videos you can upload to YouTube or add to a native YouTube playlist. Castr also says storage, concurrent streams, and loop availability vary by subscription. Check Castr’s current plan details before subscribing, since limits can change and the published page does not establish a complete, durable plan-by-plan matrix for every limit.
What this limit covers—and what it does not
Castr’s pre-recorded streaming feature plays uploaded or imported video files as a live broadcast at a chosen time. Castr can deliver that broadcast to YouTube, but the files are part of the Castr stream setup. That is different from uploading an ordinary on-demand video to YouTube, where viewers start playback individually, or creating a playlist in YouTube itself.
The cited Castr information does not establish YouTube’s own video limit for a native YouTube playlist. If you meant a playlist created in YouTube Studio rather than a Castr pre-recorded broadcast, these Castr plan limits do not answer that question.
#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.
How Castr’s pre-recorded workflow works
Choose files and a destination
Castr’s Help Center article “How to Start Streaming Pre-recorded Videos,” published July 8, 2026, describes adding multiple videos to a pre-recorded playlist. It supports MP4 files, which you can upload from a computer or import from cloud storage. Castr says video size and media-file count depend on the subscription.
Choose a schedule or loop
Castr documents two scheduling modes: schedule a start date and time, or loop a playlist. Its Help Center article “Scheduling Modes In Castr Pre-recorded Live,” published April 24, 2026, says the scheduler uses the device’s time zone. Confirm that the device is set to the time zone you intend to use when scheduling a start.
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.
Send the broadcast to YouTube
In this workflow, Castr plays the prepared file or playlist as a live feed and sends it to the selected destination. Castr’s product page says, “No encoder or live source is needed.” Its destination options and the number of destinations available depend on the plan; the documented options include YouTube, as well as other destinations.
What to check before choosing a plan
- Number of files: Compare your playlist size with the plan limits above.
- Duration per file: Castr lists different maximum file durations by tier. A playlist count that fits your plan may still include a file that exceeds its duration limit.
- Storage and file size: Castr says storage and media-file size limits depend on subscription. Confirm the current allowance for your account and files.
- Looping and concurrent streams: Availability and limits vary by plan. Check these if you need a playlist to repeat or need to run multiple pre-recorded broadcasts at once.
- Destinations: Confirm the destination count allowed by your plan if the same broadcast needs to go to more than one place.
Prepare the videos without confusing recommendations with requirements
Castr’s Help Center guide “Recommended Settings for Recorded Videos,” published December 18, 2023, recommends MP4, constant bitrate, a 2-second keyframe interval, Full HD (1920×1080), 30 FPS, and 4,000 Kbps. Those are recommendations from that guide, not the playlist limit and not a requirement established by the newer setup article. Because the settings page dates from 2023, check Castr’s current guidance if encoding compatibility is critical to your broadcast.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Rank #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.
If you need an always-on YouTube stream instead
If your goal is to keep uploaded videos playing on YouTube around the clock, rather than schedule a particular Castr pre-recorded broadcast, StreamNeo is a separate cloud option: upload a recording or build a playlist, add your YouTube stream key, and go live. The stream runs in the cloud, so your computer and home connection do not have to stay on; it can recover automatically if YouTube drops the stream. Uploaded videos stream as made, up to 4K 60fps, at one price per slot, and the first day is free with no card. The monthly plan 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.
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
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.




