It was two roughly two years, maybe less, before the HDD began having noticeable glitches; including connection trouble.
Now, it's about three years on, and this thing is almost dysfunctional. Every time I connect it, I'm worried that 'this will be the day' that I lose all my backups. It takes minutes to connect, minutes to open large folders, and often fails to do so at all.
All in all, my Adata has vastly underperformed each and every external HDD I've ever owned. Despite its supposed "shock resistance", every single one of them has lasted longer, under more strenuous conditions, and with more frequent use; all the while, being less prone to failure. This includes HP's, Samsungs, and more.
If you're one of those demanding consumers that believes the products you buy should actually *work*, you might want to avoid Adata.
SSD hard drives
USB Flash Drives
Micro SD memory cards
It has also won many of the most internationally recognized awards, including:
Silver medal for excellence in Taiwan.
G-Mark Japan (Good Design Award).
Innovations in the Common Economic Domain in the United States.
Germany red dot design award.
For me: It offers reliable USB at reasonable prices.
Faulty SSD drive (7 months old) – contacted Adata.
Every communication took a day to respond.
Because they don't have facility in UK – they required me to post faulty device to Netherlands (at my expense – 拢12).
Extremely doubtful I will ever use their products again (and I build machines regularly).
Sort your customer engagement Adata!!!