Windows device names: https://support.microsoft.com/en-us/kb/74496

device.js

//  Name    Function
//  ----    --------
//  CON     Keyboard and display
//  PRN     System list device, usually a parallel port
//  AUX     Auxiliary device, usually a serial port
//  CLOCK$  System real-time clock
//  NUL     Bit-bucket device
//  A:-Z:   Drive letters
//  COM1    First serial communications port
//  LPT1    First parallel printer port
//  LPT2    Second parallel printer port
//  LPT3    Third parallel printer port
//  COM2    Second serial communications port
//  COM3    Third serial communications port
//  COM4    Fourth serial communications port

var fs = require('fs');
var stream = fs.createWriteStream('\/\/.\/CON');
stream.write('sadgsad');
stream.end();