Start with the cheapest non branded you can find and work up if you have any problems. Personally I haven't and backups on my 15p disks are still good after 2 years storage in 1p plastic sleeves!
Huawei P10 review
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New iPad, iPhone SE & Red iPhone 7 on sale now
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.