My Book For Mac...Will it work for Mavericks 10.9.5?

My Book For Mac…Will it work for Mavericks 10.9.5?

Need help quickly…WD Customer Support is currently closed. I am trying to beat the clock on an important deadline.

Many Thanks!

Welcome to the Community.

It supports 10.9

http://www.wdc.com/en/products/products.aspx?id=250#Tab3