The 3488A has been replaced by the 3499 Switch Family. The 3499A/B/C are software and firmware compatible with the 3488A, while adding a selection of 20 additional switch modules.
The Keysight 3488A switch/control unit brings versatile, GPIB programmable switching to tests requiring multi-channel measurements. The Keysight 3488A provides signal switching with the integrity and isolation needed for high-performance production test systems. It also offers a flexible, low-cost interconnection for automating experiments on the bench and for developing tests in the lab. The Keysight 3488A is designed to hold up to five of the following switch and control modules: