WhatCable Pro for Mac v0.22.0 USB-C Diagnostic Tool Chinese Activation Version Download

WhatCable is a menu bar tool designed specifically for Apple Silicon Macs, which can directly read real data from the macOS system’s IOKit services without any estimation or speculation. It accurately informs you of what each USB-C/Thunderbolt cable connected to your Mac can do. It helps you quickly identify the cable type, transmission protocol, power capability, and display output specifications, and precisely pinpoint the bottleneck issues in the connection.

The Pro version offers deeper diagnostic functions, analyzing the negotiation process between the Mac port, cable, and device in detail. It also monitors real-time charging power, examines Power Delivery protocol details, and checks the health status of the ports. It is a must-have tool for enthusiasts of peripherals, designers, video creators, developers, and IT technicians.

## Key Features

1. **Automatic Cable Type Recognition**: Supports all USB-C cables, including Thunderbolt 3/4/5, USB4, USB 3.2 Gen 1/2, and USB 2.0.
2. **Connection Protocol Detection**: Displays the current device’s used transmission protocol and connection mode.
3. **Bandwidth and Speed Information**: Clearly indicates the maximum data transfer speed supported by the cable (e.g., 40Gbps, 20Gbps, 10Gbps).
4. **Power Capability Detection**: Shows the maximum charging power supported by the cable (e.g., 100W, 60W, 27W).
5. **Display Connection Analysis**: Examines resolution, refresh rate, and video output specifications.
6. **Charger Identification**: Displays the brand, product name, and rated power of the connected charger.
7. **Simultaneous Device Monitoring**: Supports viewing the connection status of all external devices at the same time.
8. **Real-time Connection Status Updates**: Refreshes and displays changes in connection status in real-time when plugging or unplugging devices.
9. **Native Menu Bar Support**: Accesses current device connection details quickly through the menu bar.
10. **Basic Bottleneck Hints**: Provides simple explanations to help you understand what limits the current connection.
11. **CLI Command Line Tools**: Offers a complete command-line interface for scripting and automated diagnostics.

## Exclusive Advanced Features in Pro Version

### 1. Negotiation Diagnostics
– Side-by-side comparison of the capabilities supported by the Mac port, cable, and external device with the actual negotiation results.
– Automatically highlights the weak points (bottlenecks) in the connection.
– Includes cross-checks between the cable’s e-marker and Thunderbolt controller to catch inaccurately reported cables.
– Pro screen can be opened as a pop-up view or separated into a standalone window for continuous monitoring when changing cables.

### 2. Real-time Power Metering
– Real-time wattage, ampere, and voltage data for each port.
– Updated every 2 seconds from the battery controller.
– Displays power history records.
– Supports viewing power data for USB-C and MagSafe ports.

### 3. Power Delivery Contract Checker
– Examines the complete negotiated Power Delivery contract.
– Displays active voltage and current.
– Decodes all available PDO (Power Delivery Object) information.
– Detects and alerts any capability mismatches.

### 4. Cable Resistance Estimation
– Estimates cable resistance using multiple-point regression analysis.
– Helps identify low-quality or worn-out cables.
– Identifies cables that may cause voltage drops and slow charging.

### 5. Port Health Counter
– Tracks lifecycle statistics for the port, including the number of connection/termination events, hard resets, short circuit records, I2C errors, FET failures, and liquid detection (LDCM) sensor status.
– Helps determine if there are any hardware issues with the port.

### 6. Power Delivery Event Tracker
– Examines the detailed history of connection, negotiation, and reset events at the protocol level.
– Helps diagnose intermittent connection issues.

### 7. Desktop Widgets
– Provides small, medium, and large-sized desktop widgets.
– Allows selecting specific port information to display.
– Pro-exclusive power monitoring widget for showing charging status, current power, and power history.

### 8. Independent Monitoring Windows
– Allows separating any Pro feature window into a standalone window.
– Supports window placement, making it convenient to monitor continuously while performing other tasks.