Greet the unique and compact DS620slim, ready to boost your productivity at work, and its mini design allows it to blend in any workplace harmoniously. It is the First 2.5" form factor DiskStation NAS with Btrfs file system supporting Snapshot Replication. RAID Flexibility: Flexible in variety of RAID configurations to utilize maximum 30TB raw capacity or better data protection with RAID 5/6/10

• Mini-sized yet powerful 6-bay NAS, ready to maximize your work productivity
• 6 drive bays with better RAID flexibility to configure 2.5 HDDs and SSDs
• 2GB DDR3L memory, expandable up to 6GB
• Over 220 MB/s reading and 190 MB/s writing even under encrypted data transmission
• Dual-channel H.265/H.264 4K video transcoding on the fly
• Advanced Btrfs file system, offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder
• Anywhere access with iOS and Android ready mobile apps
• Maximum IP camera: 25 (total of 750 FPS at 720p, H.264) (Including two free camera licenses; additional cameras require the purchasing of additional licenses)
• No expansion unit available for this model.
• Sapres - Disk Tray - 2.5" Disk Tray (D1)