Zelda67 :
Any 2.5" drive with a SATA interface would work.
thanks for answer I plan link usb 3.0 external 6 tb hdd Just for Game installs No plans to add internal Hard Disk. My question about Ext. Hdd are reliable not internal 2.5 inch Hdd
I like to use a USB 3.0 Drive Dock (a Toaster).
I have a lot of older spare drives around that I use to make back ups.
I keep them in the original boxes and label each box so I know what they are storing.
With a toaster dock you just pop any bare drive (3.5" or 2.5") into it and turn it on.
This way you can keep a few drives big or small to store your games.
Maybe each drive has different types of games. One for racing games and one for shooting games.
Cable Matters USB 3.0 SATA HDD/SSD Docking Station with 10TB+ drive support (Thunderbolt 3 & USB-C compatible)
$22.49
https://www.amazon.com/dp/B0099TX7O4
Western Digital, HGST (owned by WD) and Toshiba hard drives are fast (depending on the model) and reliable.
You could even get a Solid State Drive to pop into your toaster.