Can i upgrade the 500gb harddrive internal HD to a 1TB sata internal hard drive in my Acer Aspire 7551-7422 Laptop considering I get the right spec for HD tray
If it fits, it will work. Replace PATA with PATA and SATA with SATA.
It will work if the old HDD is also a SATA.
PATA is not used anymore, but it was until a few years ago, and occasionally one can find a PATA drive inside an old laptop.