A NAS (network attached storage) is a small server that keeps your files on shared disks. Offices use one for shared folders, laptop and server backup, CCTV recording and remote access. It is the usual replacement for an ageing Windows file server. Synology NAS and QNAP cover most offices, with Asustor and Ubiquiti UNAS also in our range.
Start with the workload. A home NAS (photos, media, phone backup) is happy with 2 bays. An office NAS for shared files and laptop backup is better at 4 bays or more, so you can run RAID and keep growing. A surveillance NAS records cameras around the clock, so count the cameras, the retention days and the drive type before you pick a model. A NAS for an office of 10 to 25 people is usually a 4-bay or 6-bay unit with 2.5GbE or 10GbE networking. Plan for backup as well. RAID protects against a failed disk, not against deletion, fire or ransomware, so keep a second copy elsewhere. Synology's Hyper Backup can send backups to another Synology NAS, rsync, WebDAV or public clouds such as Amazon S3 and Microsoft Azure.
Bay count and drives decide the real cost. Buy one bay count above what you need today, and fill it with NAS-rated drives, not desktop drives; our hard drives page and guide to NAS hard drives explain which to pick. Synology's SHR lets you mix drive sizes and expand later. SSDs have two roles in a NAS. M.2 NVMe drives act as a cache for busy shared folders, and an all-flash NAS suits databases and virtual machines. Check the vendor's drive compatibility policy before you buy SSDs for it.
Network speed is the other limit. Gigabit Ethernet tops out around 110MB/s, which is fine for documents. 2.5GbE suits small offices, and 10GbE is the starting point for video editing or a backup target. Synology lists IT World Trading LLC as a Sub-distributor for the UAE on its own Where to Buy directory, and we supply QNAP from the same Bur Dubai stock. Our Synology vs QNAP comparison sets out the software differences. Send the bay count and use case on WhatsApp for a quote.