Synology NAS DiskStation - Diskless (DS216+II) Dual-core CPU with AES-NI hardware encryption engine Encryption performance at over 113.01 MB/s reading, 111.66 MB/s writing Advanced Btrfs file system with built-in data integrity check Single H.264 4K or triple Full HD video transcoding on the fly Hot-swappable drive tray design for easy installation & maintenance