The Keithley KUSB-488A is a USB-to-GPIB controller that connects modern computers to legacy GPIB instruments, enabling automated testing, data acquisition, and instrument control across laboratory and industrial environments. The adapter bridges the gap between contemporary USB-based systems and IEEE-488.2 measurement devices without requiring external power.
## Technical Specifications
• **Interface:** USB 2.0 host controller with IEEE-488.2 (GPIB) instrument interface
• **GPIB Device Capacity:** Controls up to 14 instruments per bus
• **Data Transfer Rate:** 1.8 MB/s typical via USB 2.0
• **Cable Distance:** Up to 20 m GPIB cable runs
• **Power Consumption:** 500 mA typ. at 5 VDC; bus-powered operation
• **Dimensions:** 3.2 × 2.6 × 1.1 inches (81.7 × 66.1 × 27.8 mm)
• **Built-in USB Cable:** 2 m integral connection to host
## Key Features
• Compact form factor suitable for portable and space-constrained setups
• No external power supply required; draws current directly from USB bus
• Operates across 0°C to 55°C ambient temperature range
• 10% to 90% RH non-condensing operating humidity
• EMC compliance with European Directive 2004/108/EEC
## Typical Applications
Instrument control and system integration in automated test environments, legacy GPIB device modernization, multi-instrument data collection workflows, and laboratory measurement setups requiring USB host connectivity.
## Compatibility & Integration
Supports Windows XP, 2000, Vista, and 7 operating systems with included 32-bit driver libraries and dynamic link libraries. Integrates with Microsoft Visual Studio (6.0, .NET, 2005+), Borland Delphi and C++ Builder, LabVIEW (7.0+), and LabWindows/CVI (7.0+). Driver command set maintains compatibility with National Instruments and Capital Equipment Corporation function libraries. Functions with all standard GPIB instruments and Keithley GPIB-capable devices.
