Agilent/Keysight U2905A

The Keysight U2905A is a rackmount kit accessory that enables secure integration of the U2781A USB modular instrument chassis into standard 19-inch rack cabinets. This support shelf and mounting hardware solution allows engineers to deploy modular data acquisition systems within rack-mounted infrastructure for laboratory and industrial environments.

Technical Specifications

• EIA 487-mm (19-inch) rack cabinet standard


• Support shelf with integrated mounting hardware


• Designed exclusively for U2781A chassis compatibility Connectivity & Interface:


• Hi-Speed USB 2.0 interface for host instrument communication


• Hot-swappable modular instrument architecture


• Windows operating system compatibility

Key Features

• Provides structural support for U2781A chassis in rack environments


• Enables organized deployment of multiple USB modular instruments


• Supports synchronized measurement capabilities across modular instruments


• Agilent Measurement Manager software with soft front-panel interface


• Software integration with VEE, VB, C++, and C# development environments

Typical Applications Rack-mounted data acquisition systems requiring multiple isolated digital input/output channels, industrial test automation with distributed I/O requirements, and laboratory measurement configurations demanding modular, expandable architectures.

Compatibility & Integration The U2905A houses the U2781A chassis, which accommodates Keysight USB modular instruments including isolated digital I/O modules. Compatible modules such as the U2651A (32-bit DI/DO with 1250 Vrms isolation, 10–24 V input, 35 V max output) and U2652A (64-bit DI) integrate into the chassis for expanded I/O capabilities. Product Status: Discontinued effective June 1, 2024. Extended support available for five years from discontinuation date.