BUY VI-2N0-IV-08 https://www.utsource.net/itm/p/419719.html
Analog IC
The VI-2N0-IV-08 is a DC-DC converter module from Vicor. It is a 2kW, isolated, non-isolated, non-regulated, 48V input, 5V output module. It has a wide input voltage range of 36-75V and an output voltage range of 4.5-5.5V. It is designed for use in high-power applications such as industrial automation, telecom, and medical equipment. It features an efficiency of up to 95%, a low profile of 0.5" (12.7mm), and a wide operating temperature range of -40°C to +85°C. The module is also RoHS compliant and has a MTBF of >2 million hours. (For reference only)