Help finding sliding mounting rails for my new rack setup?

[je82]

Hello,

 

I'm rather new to the whole server scene, i have already purchased this chassi: https://www.servercase.co.uk/shop/server-cases/rackmount/4u-chassis/4u-server-case-w-24x-35-hot-swappable-satasas-drive-bays-6gbs-minisas-sc-4324/

 

I am getting this rack: https://www.startech.com/Server-Management/Racks/12u-4-post-server-rack~4POSTRACK12U

 

What i am looking for a little help with is finding out which rails i need to buy in order to be able to mount them in the rack and "slide" the chassi out so i can do service to it without having to unount the entire server everytime i want to change some hardware or fix something.

 

Anyone know what i need to be looking for? I am unsure of the standards here, do all rails work for every chassi or are there particulars?

 

Any information is greatly appreciated!