Check the listing for details. HP/AGILENT 3499B 2-Slot Switch Control Mainframe with (x2) 44470A Modules!!. Condition: Used. Listed at 475.00 USD. HP/AGILENT 2-Slot Switch Control Mainframe Model: 3499B ( with (x3) 44470A) Description: When you need a small amount of switching in your test system, the 2-slot 3499B mainframe can be your ideal solution. This compact 2U high mainframe can route up to 80 channels in a test system. With various switch modules, it can scan at rates up to 350 channels per second, or open/close 80 channels in less than 0.1 second.The 3499B has a concise user interface that is designed for manual operation on the manufacturing floor or in desktop applications. High-performance switching modules, multi-function modules, built-in relay cycle counters and easy interconnections all work together to provide a switching solution you can trust.The Keysight 44470A multiplexed module provides ten channels to switch both high and low input signals to a common bus. It can switch signals up to 250V, 2A, and 60W, or 125VA per channel. This module exhibits low thermal offset characteristics, making it ideal for precision low-level signal routing. It can be operated in either a break-before-make mode or multiple-channels-close mode. You can make four-wire ohm measurements by programming two Keysight 44470As to open/close in a card-pair mode. A screw terminal block is provided for ease of wiring.Good Used Condition, May have some light scratches, Cosmetic Only What you see is what is included90 day Warranty, Don't Miss out on a Great unit!!!