A USB-C Power Delivery (PD) analyzer lets you observe the negotiation between a power source and a device. An inline model sits between them and can capture protocol messages; some models also measure electrical signals or actively exercise ports. Those capabilities are not interchangeable, so check the exact instrument and any required companion hardware before connecting it.
What a USB-C PD analyzer shows
A PD analyzer observes communication between a source, such as a charger, and a sink, such as a phone or laptop. An inline analyzer is placed in the connection between the two. Texas Instruments describes its TI-PD-ANALYZER as monitoring and logging PD data on the Configuration Channel pins (CC1 and CC2) to help analyze and debug source-to-sink communication. See the TI-PD-ANALYZER product page.
A decoded trace can show the order and content of protocol exchanges. Electrical measurements, when available, answer a different question: what voltage, current, or signal behavior occurred on the connection? For example, Total Phase explains voltage and current measurements for its own analyzer in its USB PD Analyzer measurement guide. Its circuit details should not be assumed to apply to other brands.
- Protocol trace: shows decoded messages exchanged during the session.
- Electrical readings: show measured values such as VBUS voltage or current, and potentially VCONN or CC signals, depending on the instrument.
A protocol message is not itself a direct electrical measurement, and a meter reading is not a decoded protocol event. Looking at both, when the analyzer supports both, can help distinguish a negotiation issue from an electrical behavior issue.
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- 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.
Check the instrument before connecting it
“Analyzer” and “tester” are broad product labels, not a promise of a standard feature set. Before setup, confirm the supported PD revision, connector arrangement, included software, companion hardware requirements, and whether the tool only captures traffic or can also generate power or exercise a port.
TI-PD-ANALYZER: a paired-EVM tool
The TI-PD-ANALYZER decodes PD messages according to the revision stated on its product page and works with a GUI that can display and save recorded communication. It is intended for use with a paired evaluation module (EVM), not as a standalone licensed product. Review the TI-PD-ANALYZER user guide and product documentation before purchase or setup.
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.
TI’s guide describes a bidirectional unit with a Type-C plug and receptacle for the two sides of the link, with source and sink orientation specified by the device documentation. Follow that model’s connection instructions rather than assuming all inline analyzers use the same connector layout or orientation.
Other products may add tester or exerciser functions
PassMark’s USB Power Delivery Tester describes protocol sniffing alongside additional tester functions. Teledyne LeCroy’s Voyager M310e is an analyzer/exerciser whose manual warns that setting voltage or current beyond connected devices’ capabilities can damage the devices and cables. These examples illustrate why the model’s specifications and manual matter; they are not a complete survey of the market.
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.
Set up and capture a session
- Confirm compatibility and requirements. Check the model’s supported PD revision, connector arrangement, software, and any required companion hardware. For TI-PD-ANALYZER, account for the paired-EVM requirement.
- Connect source and sink to opposite ends. Follow the instrument’s manual for which end faces the source and which faces the sink. For TI’s bidirectional unit, use its documented Type-C plug and receptacle orientation.
- Connect the analyzer to the host and open its supplied software. TI documents a GUI for displaying and saving recorded communication; consult the specific tool’s guide for its own host and software setup.
- Capture a repeatable charging session. Read the trace in message order and identify the communicating roles. Compare relevant events with electrical readings only if the instrument provides them.
- Save the trace and record the conditions. Note the source, sink, cable, analyzer model, software and firmware versions, connection orientation, and test conditions. This makes later comparisons more meaningful.
- Use exercising features cautiously. If the tool can source power or exercise a port, follow its manual and keep voltage and current settings within the ratings of every connected device and cable.
Choose a tool for the job
| Use case | What to look for | Important qualification |
|---|---|---|
| Debugging PD communication | Supported PD revision, decoded message capture, bidirectional connection, and suitable display/export software. | TI documents message monitoring and decoding for its TI-PD-ANALYZER, with paired-EVM use required. |
| Investigating electrical behavior | Explicit support for the measurements needed, such as VBUS voltage/current or CC signals. | Measurement features and circuit details vary by product; consult that model’s documentation. |
| Testing cables or exercising ports | Specific cable-check, programmable source/sink, or port-exercising functions. | These features are model-specific and can carry risk if configured beyond equipment ratings. |
| Formal compliance work | Applicable USB Type-C and PD test specifications and recognized testing equipment. | A captured trace alone does not establish compliance. USB-IF lists compliance testing resources. |
For any session you intend to share or compare, preserve the original trace and the conditions under which it was captured. A trace is evidence of that particular session; it does not by itself prove that a product meets a standard.
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
