MS084R43CNC579417TA retrofit LCD monitor is a direct replacement for Siemens Sinumerik 579417 TA 9 inch monochrome CRT monitor. It is also compatible with all other Siemens Sinumerik 9 inch monochrome CRT monitor, too. It had upgraded to UB54 series LED backlight and it will last 10 times longer than CCFL LCD monitor. Installation takes about 15 min. Easy to install, anyone can do it! MS084R43CNC579417TA comes with 1 year warranty.