PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteMIT researchers’ Robust MADER is a decentralized planning algorithm designed to help multiple drones avoid midair collisions when trajectory-sharing messages arrive late. Each drone keeps following a trajectory already checked as safe while it evaluates a replacement, then waits briefly to check for new information before committing. In the researchers’ reported simulations and hardware tests, the approach generated collision-free trajectories in the tested scenarios; that result is not a guarantee for arbitrary drones, networks, or operating conditions.
Why delayed communication can make drone paths conflict
When drones share an airspace, each needs to account for where the others plan to fly. The earlier MADER planner had drones exchange their planned trajectories, but a plan could become stale before another drone received it. If a drone planned around outdated information, its new route could conflict with a partner’s updated route.
Robust MADER addresses that timing problem without requiring all drones to replan at once. It is decentralized and asynchronous: each drone computes its own trajectory and shares it with the others, which may be planning on different schedules. The method is described in the Robust MADER paper, an arXiv preprint whose latest listed version is v6, revised December 26, 2023.
How Robust MADER checks a new route
- Keep following a known-safe route. While a drone works on a candidate trajectory, it continues to fly a trajectory already checked as safe rather than immediately switching to the new plan.
- Share and review the candidate. The drone sends its proposed trajectory to other agents and checks the information it receives about their plans.
- Wait through a delay-check period. Before committing to the candidate, the drone allows time for additional trajectory updates to arrive. This is the extra safeguard against acting on stale information.
- Replan if an update reveals a conflict. If a newly received trajectory creates a collision concern, the drone discards its candidate and runs the optimization again. If the checks do not reveal a conflict, it can proceed with the replacement route.
The important distinction is that Robust MADER does not simply assume that the first plan received from another drone will remain current. It preserves a route considered safe while it checks whether newer information changes the picture.
#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.
What the reported tests showed
The paper authors report 100% collision-free trajectory-generation success for Robust MADER in their evaluated scenarios, compared with 83% for the next-best asynchronous decentralized method in the paper’s comparison. MIT News separately reports 100% success across hundreds of simulations with artificially introduced communication delays. These are study-specific results, not performance guarantees for other settings.
MIT also reported hardware experiments involving six drones and two aerial obstacles. In that test environment, the original MADER had seven collisions, while the Robust MADER experiments had no crashes. The drones flew at a reported speed of 3.4 meters per second. These figures describe the reported experiment, not a general safe operating speed or a result established for outdoor deployments.
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.
The safety tradeoff: more caution can mean more time
MIT reported that Robust MADER’s average travel time was slightly longer than that of some baselines. The delay-check step and the possibility of discarding a candidate route can add caution at the expense of efficiency. Kota Kondo, an aeronautics and astronautics graduate student, described the tradeoff this way: “If you want to fly safer, you have to be careful, so it is reasonable that if you don’t want to collide with an obstacle, it will take you more time to get to your destination. If you collide with something, no matter how fast you go, it doesn’t really matter because you won’t reach your destination.”
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the results do—and do not—establish
The experiments support Robust MADER as a research-stage approach to decentralized multi-drone trajectory planning under communication delays. They do not establish that it works for every network, environment, drone configuration, or commercial operation. MIT’s March 29, 2023 report said outdoor tests and visual sensors for detecting agents or obstacles and accounting for predicted movement were future work. The cited sources do not establish later outdoor validation, commercial deployment, or a retail drone that implements the algorithm.
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.
For the underlying method and its reported benchmarks, see the Robust MADER paper and MIT News Office’s March 29, 2023 report.
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.
