The 9170 and 9180 Series of power supplies feature a full numerical keypad for convenient data entry, LED test modes, 2 modular interface card slots, automatic range selection and an optional 8-bit bidirectional digital I/O interface; all of which are features normally not included on power sources in this range. Also offered with this series are SCPI IEEE488.2 compliant USB (standard), RS232, RS485, GPIB and LAN interfaces, combined with front and rear panel output and remote sense terminals to facilitate test system development and integration. The LAN interface includes a built-in web server that allows users to configure, control, or monitor basic power supply settings. Last but not least with prices starting at only $985, this series presents an incredible value by any measure.