ok, the link below is SSHD.
The link below is a HDD.
https://www.newegg.com/Product/Product.aspx?Item=N82E16822236541
Please note that it's not a coincidence that I'm giving you links to 2.5 inch drives with a 7mm height, because that's what fits in your computer. Image may be NSFW.
Clik here to view.
Form Factor: 2.5 inch
Height: 7mm
---------------------------------------------------------------------------------------------------------
I use a SSD in my laptop and it's only 250 GB. Because I use both "the cloud" and an external USB 3.0 HDD for additional space/backups. I don't find that it's necessary to have a high capacity drive, but everyone's situation is different.
https://photos.google.com/apps
https://www.google.com/drive/download/
https://onedrive.live.com/about/en-us/download/
https://www.amazon.com/Seagate-Backup-Portable-External-STDR1000100/dp/B00H4XH5FY
------------------------------------------------------------------------------------------------------------------
The screenshot below are the original Acer HDDs that Acer used in your computer model.
Image may be NSFW.
Clik here to view.