doubling RAM - Alienware R10 Ryzen

The RAM from my spec sheet is as follows. I'm wondering if anyone else has ordered another 16GB stick off eBay and got it to work? I'm RAM upgrade illiterate, having never done this before. Below is an example of what I would be looking to buy.

https://www.ebay.com/itm/125850472716?epid=23051838728&itmmeta=01J02KF0JK4TM5XRQCCQ2F2BKH&hash=item1d4d45d10c:g:-MkAAOSw~NRiVI5d&itmprp=enc%3AAQAJAAAAwHBk2GGwMQ84y8AVqf2iSRSOdwUgxESTkLgDgEVkSHkwhahYd%2FpmYcLkgfcVTBL4SN%2FhJmqHKWlfQtT5Tt29Ppeu95tgJPL1cvy3JZp5SoC%2F3Rsw7NipACdaSXgUmWMcOOy9bBZyCzdfdDi%2BBhsK%2BDJhVS57CFiDBeUNdj9nsvKJfglifJ9oviIA2iv%2FSO14T5ydIXkzIkSejA3hZTKP5fZ6BkIz735jav3LPOKubQdtNV2EMRlGn4gw%2FU%2Fghv%2BCoA%3D%3D%7Ctkp%3ABk9SR7KJvNOAZA

370-AGKH : 16GB, 1x16GB, DDR4, 3200 MHz, XMP