Hewlett Packard A2094 Monitor (Standard RGB ?)

I have found a manufacturer that seems to have an adaptor to allow me to use my HP A2094 monitor with my standard PC for only $30.00. Could this actually work ? I am not a monitor expert so could someone tell me if this could work by adding composite sync on pin 13, and on green pin 2 ? Looks to me that It would only be MONO if this is done ? Here is the information from their site: PC Sync Adapter (Cost $30.00) HD-15 Male to HD-15 Female adapter provides composite sync (pin 13) and sync on green (pin 2). Here is the standard pinouts for a VGA video card that I found: VGA DB15-S Female DB9 Female 15-pin 9-pin assignment 1 1 Red 2 2 Green 3 3 Blue 4 - Monitor ID bit 2 5 - N/C 6 6 GND (red return) 7 7 GND (green return) 8 8 GND (blue return) 9 - N/C 10 - GND 11 - Monitor ID bit 0 12 - Minitor ID bit 1 13 4 Horizontal Sync 14 5 Vertical Sync 15 - N/C