supply of additional hardware (controller cum memory unit) with usb port .additional hardware (controller cum memory unit) with usb port .,supply, installation and commissioning of an additional hardware (controller cum memo ry unit) with usb port and necessary software for integration of usb and recording memory in micas vcu locos fitted with arc make driver display unit (arc / ddu / v2.0, arc / ddu / v2.1 & arc/ddu/v 2.2) for recording of 43 nos of critical data recording parameters of 3-phase locomotives at a sampling rate of 1 second as per clw/crj letter no. c-d&d/t/39, vol-i dt:-06.12.2023 & rdso mom issued vide lr.no:el/3.1.35/17 dtd.28/04/23. [ warranty period: 30 months after the date of delivery ] ]