Synology DiskStation DS716+II

DS716+II is the perfect combination of scalability, performance, and versatility. It can deliver high-speed encrypted data transfer, 4K transcoding, and is running Btrfs, a next-generation file system.
Equipped with a quad-core processor and AES-NI hardware encryption engine, DS716+II delivers blazingly fast file transfer speeds — even when handling encrypted data. With Link Aggregation enabled, DS716+II delivers average reading and writing speeds of 226.1 MB/s and 141.19 MB/s respectively, while encrypted file transfers retain an astoundingly similar level of performance, exceeding 226.09 MB/s reading and 138.04 MB/s writing. That means you can safeguard data without sacrificing performance.

Hardware Specifications
CPU Model	Intel Celeron N3160
CPU Architecture	64-bit
CPU Frequency	Quad Core 1.6 burst up to 2.24 GHz
Floating Point
Hardware Encryption Engine (AES-NI)
Hardware Transcoding Engine	H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30
Memory
System Memory	2 GB DDR3
Storage
Drive Bay(s)	2
Maximum Drive Bays with Expansion Unit	7
Compatible Drive Type	3.5" SATA III / SATA II HDD 2.5" SATA III / SATA II HDD 2.5" SATA III / SATA II SSD
Maximum Internal Raw Capacity	16 TB (8 TB HDD x 2) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units	56 TB (8 TB HDD x 7) (Capacity may vary by RAID types)
Maximum Single Volume Size	108 TB
Hot Swappable Drive
External Ports
USB 3.0 Port	3
eSATA Port	1
USBCopy
File System
Internal Drives	Btrfs EXT4
External Drives	Btrfs EXT4 EXT3 FAT NTFS HFS+
Appearance
Size (Height x Width x Depth)	157 mm x 103.5 mm x 232 mm
Weight	1.75 kg
Others
RJ-45 1GbE LAN Port	2 (with Link Aggregation / Failover support)
Wake on LAN/WAN
System Fan	92 mm x 92 mm x 1 pcs
Fan Speed Mode	Cool Mode Quiet Mode
Wireless Support (dongle)
Brightness adjustable front LED indicators
Power Recovery
Noise Level*	18 dB(A)
Scheduled Power On/Off
Power Supply Unit / Adapter	65W
AC Input Power Voltage	100V to 240V AC
Power Frequency	50/60 Hz, Single Phase
Power Consumption*	19.14 W (Access) 9.50 W (HDD Hibernation)
British Thermal Unit	65.35 BTU/hr (Access) 32.44 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature	5°C to 40°C (40°F to 104°F)
Storage Temperature	-20°C to 60°C (-5°F to 140°F)
Relative Humidity	5% to 95% RH
Certification	FCC Class B CE Class B BSMI Class B
Warranty	3 Years
Notes	Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications
Storage Management
Maximum Internal Volume Number	512
Maximum iSCSI Target Number	32
Maximum iSCSI LUN	256
iSCSI LUN Clone/Snapshot, Windows ODX
Supported RAID Type	Synology Hybrid RAID Basic JBOD RAID 0 RAID 1 RAID 5 (with Expansion Unit) RAID 6 (with Expansion Unit) RAID 10 (with Expansion Unit)
RAID Migration	Basic to RAID 1 Basic to RAID 5 (with Expansion Unit) RAID 1 to RAID 5 (with Expansion Unit) RAID 5 to RAID 6 (with Expansion Unit)
Volume Expansion with Larger HDDs	Synology Hybrid RAID RAID 1 RAID 5 (with Expansion Unit) RAID 6 (with Expansion Unit)
Volume Expansion by Adding a HDD	Synology Hybrid RAID RAID 5 (with Expansion Unit) RAID 6 (with Expansion Unit) JBOD (with Expansion Unit)
Global Hot Spare Supported RAID Type	Synology Hybrid RAID (with Expansion Unit) RAID 1 (with Expansion Unit) RAID 5 (with Expansion Unit) RAID 6 (with Expansion Unit) RAID 10 (with Expansion Unit)
SSD Support
SSD Read/Write Cache
File Sharing Capacity
Maximum User Accounts	2048
Maximum Groups	256
Maximum Shared Folder	512
Maximum Shared Folder Sync Tasks	8
Maximum Concurrent CIFS/AFP/FTP Connections	512
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Log Center
Syslog Events per Second	800
Virtualization
VMware vSphere 5 with VAAI
Windows Server 2012
Windows Server 2012 R2
Citrix Ready
Add-on Packages
Antivirus by McAfee (Trial)
Central Management System
Cloud Station Server
Maximum Concurrent File Transfers	512
Docker DSM
Maximum Docker DSM Number (Licenses required)	2 (including 1 Free License)
Document Viewer
Download Station
Maximum Concurrent Download Tasks	80
HiDrive Backup
MailPlus / MailPlus Server
Free Email Accounts	5
Recommended MailPlus Client Number	Up to 50
Maximum Server Performance	81,300 emails per day, approx. 2.5 GB
Notes	The CPU and RAM usages were both under 80% when testing recommended client numbers. For tested models with expandable memory, the maximum amount of RAM was installed. Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed. The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers. Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Certification
Snapshot Replication
Maximum Snapshots per Shared Folder	1024
Maximum Snapshots of all Shared Folder	65536
SpreadSheet
Maximum Simultaneous Editing Users	125
Surveillance Station
Maximum IP cam (Licenses required)	40 (including 2 Free License)
Total FPS (H.264)*	1200 FPS @ 720p (1280x720) 800 FPS @ 1080p (1920×1080) 300 FPS @ 3M (2048x1536) 250 FPS @ 5M (2591x1944)
Total FPS (MJPEG)*	450 FPS @ 720p (1280x720) 150 FPS @ 1080p (1920×1080) 100 FPS @ 3M (2048x1536) 72 FPS @ 5M (2591x1944)
Notes	Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
Video Station
Video Transcoding	4K Group 1
Maximum Transcoding Channel Number	1 channel, 30 FPS @ 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or 3 channels, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1
VPN Server
Maximum Connections	20
Environment & Packaging
Environment	RoHS Compliant
Packaging Content	Main Unit X 1 Welcome Note X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 2
Optional Accessories	Camera License Pack Expansion Unit: DX213 X 1 Expansion Unit: DX513 X 1 VS360HD