USB Type-C® Power Delivery Performance Analyzer (GRL-USB-PD-A1)


Overview & Features


  • Supports all USB Type-C® Power Delivery Performance Analy based charging like USB Power Delivery 3.0 and 2.0, Qualcomm Quick Charge™ 2.0/3.0/4/4+, Huawei SuperCharge, Samsung Adaptive Fast Charge, etc.
  • Also supports all charging technologies over USB micro-B, USB Type-A and Apple Lightning connectors through inexpensive USB Type-C adapters
  • Easily assess power charging performance and entry into Thunderbolt, DisplayPort, and other Alt-Modes
  • Conveniently view power, voltage, current, and USB PD protocol all on the same graph
  • Able to process poor USB power delivery protocol packets without crashing



GRL-USB-PD-A1 (GRL-A1) is the only solution available that analyzes for proper performance of USB Power Delivery 3.0 and all other charging technologies over USB Type-C and all other USB connectors without having to be an expert user USB Type-C is becoming one of the most widely adopted interface technologies and is rapidly evolving to support more and more communication and charging protocols. The GRL-A1 makes it easy for anyone to understand what is transpiring between two devices connected over USB Type-C. Expert users can look at detailed USB Power Delivery protocol communication and conveniently monitor in real-time VBUS voltage and current, CC/VCONN voltage and current, and Rd. Everyday users can also use GRL software to quickly understand if proper USB Power Delivery communication and charging performance is happening, and to explain what went wrong.


The GRL-A1 can be used to analyze behavior between any USB Type-C based device such as Apple Mac’s, Chromebooks, Android phones, Thunderbolt 3 docks, DisplayPort adapters, Qualcomm Quick Charge AC adapters, USB PD power banks, and cable E-Markers, etc. Using passive adapters, the GRL-A1 can also check for power and USB Power Delivery protocol communication over Apple Lightning connectors, and analyze charging behavior over USB micro-B and Type-A connectors.


Professionals and enthusiasts can use the GRL-A1 to easily check if their USB Type-C device is charging properly and safely. Developers of USB Type-C devices and technical experts can utilize the GRL-A1 to validate their design and debug issues.


Key Features

  • Supports communication and power performance analysis of USB Power Delivery (PD) 3.0 with Programmable Power Supply (PPS), USB PD 2.0, and USB BC 1.2 over USB Type-C
  • Supports USB Power Delivery analysis for DisplayPort, Thunderbolt 3, and HDMI Alternate Mode devices
  • Supports charging analysis for Qualcomm Quick Charge 4, Quick Charge 4+, Quick Charge 3.0, and Quick Charge 2.0, Huawei Super Charge, Samsung Adaptive Fast Charge, Mediatek Pump Express™, OnePlus Dash Charge, etc.
  • Supports up to 28 volts and 5.4 amps charging
  • Inject CC register values to set Rp, Rd, Ra on CC1 and CC2 to pseudo-emulate a source or sink
  • Analyze Apple iPhone/iPad charging behavior using USB Type-C to Lightning cables
  • Works with USB micro-B and Type-A connectors through passive USB Type-C connector adapters
  • Can be used with all USB PD devices including cable and adapter E-Markers, chargers, mobile phones, PC’s, monitors, etc.
  • Easy to navigate between USB PD protocol and power traces
  • View USB PD protocol information directly in the power traces
  • Monitor USB PD protocol and power traces in real-time
  • Perform round-the-clock testing where trace files are continuously and automatically saved
  • Protocol and power trace files can be easily opened and analyzed by anyone using free trace viewing software
  • Access GRL USB PD and charging test experts for further debug and testing

Options & Accessories

GRL-USB-PD-A1 - USB Type-C® Power Delivery Performance Analyzer (HW+SW)

Download & Purchase

USB Type-C® Power Delivery Performance Analyzer.

Download Link

Other Products

 USB Power Delivery and Type-C® Tester and Analyzer (GRL-USB-PD-C2)
USB Power Delivery and Type-C® Tester and Analyzer (GRL-USB-PD-C2)

GRL-USB-PD-C2: The only instrument you need for USB Type-C® Power Delivery and Alt Mode compliance testing.

Download Datasheet