The Keysight 6642A (Agilent) is one of the 664x series of 200 Watt, single output, series pass regulated power supplies, with an internal GPIB interface and SCPI programming. These models provide many talker/listener functions including remote programming of voltage and current with feedback of actual measured output values. 16 supplies can be connected to one GPIB interface via a serial link connection.
Other features and specifications of the Keysight 6642A (Agilent) include:
Agilent 6642A, Keysight 6642A, HP 6642APower Supply, 20V, 10A, 200W