Setting up a wd 1002faex cavier black as an external drive

I am going to use this drive as an external before I get my new computer built.  I have an old case with an esata port that my previous hard drive was in. The case is a chinese made Eaget that used to have a hitachi 1t drive in it.  Is there anything I need to do to make sure it works properly like jumpering the 5/6 pins to limit sata3 to sata 2?

It is advisable to jump the drive in the pins 5/6, as this enclosure might not be able to handle the transfer speed of a SATA 3.

I am not sure if i have any jumpers laying around.  Will the drive be damaged if I don’t.  I just want to be cautious because I don’t want to have to RMA another drive.  This is the case i have minus the HDD

http://www.alibaba.com/product-gs/355181736/portable_hard_drive_enclosure_3_5.html