Hamburg-w E235863 Awm 20798 80c 60v

Dear Sir/Ma'am:
I would like to order a ribbon cable for my Acer Aspire 4720Z series, Model#: Z01.
But I do not know the dimension of the cable. I have 20 pins for the HannStar circuit board (where the Power On button is) and I believe the other end is also a 20-pin connection going to the  Motherboard. It's only about 1.5 inches distance apart between these two connections. I need the correct ribbon cable dimension for this one but I am not sure. Can you pls. ensure me of the dimension that I can buy from you.
In summary, the description of my Laptop:

1. Acer Aspire 4720Z series, Model#: Z01
2. I need a  correct ribbon cable: HAMBURG-W E235863 AWM 20798 80C 60V VW-1 ????? (I don't know the dimension pls. help provide and make sure)
3. The circuit board (Hannstar, DA0Z01P16E0, Rev: E) has 20 pins the other end of the cable will be going to the Motherboard also with 20-pin connection.
4. There is only about 1.5 inches distance apart between the two
20-pin connections.

I would like to buy from you, but would like to be sure which dimension coz I don't want to pay anything extra for returning wrong ordered items.

Pls. let me know what more details you need for me to provide so you can help me determine which part I am going to order from you...

Best regards,
Nelmar Fresnido
email: nel_fresnido1@yahoo.com