Bandwidth Monitor 3.4 is a specialized utility designed to track real-time upload and download speeds for all network connections on a Windows computer. It is commonly used to monitor home or office internet usage, prevent overage fees, and test connection stability. Core Functionality
The software operates by detecting all active network interfaces—including LAN, Wi-Fi, VPN, and DSL—and capturing data flow without requiring extra drivers.
Real-Time Visualization: Displays traffic in both graphical (line or column charts) and numerical formats.
Comprehensive Logging: Automatically generates daily, weekly, monthly, and yearly usage reports.
System Service Mode: Can run as a background service to monitor a server and generate HTML or CSV reports without a user being logged in. Serial bandwidth monitor 3.4
Notification System: Alerts users via email, sound, or running a specific program when they exceed custom bandwidth limits. Key Features & Tools
The tool includes several built-in utilities beyond basic monitoring:
Speed Stopwatch: A specialized tool to manually test and record the speed of a specific download or upload session.
Transfer Rates Recorder: Logs peak and average transfer rates for performance analysis. Bandwidth Monitor 3
System Tray Integration: Provides a real-time mini-graph in the Windows taskbar for unobtrusive monitoring.
Report Exporting: Allows usage data to be exported to Microsoft Excel (.csv), plain text, or HTML formats. Installation & Requirements
Version 3.4 (specifically build 757) is a lightweight application (approx. 1.16 MB) compatible with almost all versions of Windows from Windows 98 to Windows 10. Requirement Specification Processor 1 GHz or faster Memory 1 GB RAM or more Storage 60 MB for the app + space for capture logs License Free-to-try (30-day full feature trial) Basic Usage Guide
Selection: Upon launching, the software automatically detects all network adapters. You can select individual connections or "All" to monitor total traffic. Average bandwidth over a session
Monitoring: The main window shows live graphs. You can right-click this window to access the Stopwatch or view Reports.
Alerts: Access the settings to set a Bandwidth Usage Notification. Enter your monthly cap (e.g., 500GB) to receive a warning as you approach it.
Reporting: Use the "Quick Tour" or reports menu to see historical data broken down by day or month, which is saved in an internal database. Information about Network Monitor 3 - Windows Server
Beyond the live view, the monitor aggregates data:
Yes, emphatically. While newer tools like Serial Port Monitor Pro 8.0 or freeware like ComDataCapture exist, none match the specific combination of lightweight design, non-intrusive kernel driver, and crystal-clear bandwidth visualization that version 3.4 provides. It is the tool you install once and forget – until the day a serial link mysteriously slows down, and you need hard numbers in under 30 seconds.
The core function of Version 3.4 is the calculation and display of bandwidth usage. Unlike standard terminal programs that merely display text characters, this utility calculates the payload throughput.