In the USA I paid $200 for a T14 Gen. 1 with 8 gigs of ram and 256gb SSD in 2023. About a year and a half later in early 2025 I got an i7 16gb ram 256gb T14 Gen. 3 for $250

What do you mean you’re only going to be using it for backup files? Like as a way to store your backups? An external hard drive will do that, or basically any old PC you can find in the dumps will work. If it’s just hosting backups it just needs enough power to turn on and host a network share.