Hardware Specifications
CPU
CPU Model Intel Xeon D-1541
CPU Architecture 64-bit
CPU Frequency 8-Core 2.1 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory 8 GB DDR4 ECC UDIMM
Memory Module Pre-installed 8 GB x 1
Total Memory Slots 4
Memory Expandable up to 64 GB (16 GB x 4)
Storage
Drive Bay(s) 16
Maximum Drive Bays with Expansion Unit 40
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity 160 TB (10 TB HDD x 16) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 400 TB (10 TB HDD x 40) (Capacity may vary by RAID types)
Maximum Single Volume Size
200 TB (32GB RAM required, for RAID 5 or RAID 6 groups only)
108 TB
Hot Swappable Drive
Notes
"Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB or 200TB if upgraded to 32GB RAM or more.
External Ports
USB 3.0 Port 2
Expansion Port 2
File System
Internal Drives
Btrfs
EXT4
External Drives
Btrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT*
Notes exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth) 132.3 mm x 482 mm x 656.5 mm
Weight 17.4 kg
Others
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
Wake on LAN/WAN
RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support)
PCIe Slot for Network Card (See more) 2 x Gen3 x8 slots (x8 link)
System Fan 80 mm x 80 mm x 3 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Easy Replacement System Fan
Wireless Support (dongle)
Power Recovery
Noise Level* 44.7 dB(A)
Scheduled Power On/Off
Power Supply Unit / Adapter 2 x 800W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 136.4 W (Access)
69.2 W (HDD Hibernation)
British Thermal Unit 465.7 BTU/hr (Access)
236.3 BTU/hr (HDD Hibernation)
Redundant Power Supply (for xs+ and RP model)
Environment Temperature
Operating Temperature 5°C to 35°C (40°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
FCC Class A
CE Class A
BSMI Class A
Warranty 5 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 2TB ST2000VN000 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 ( See more )
Storage Management
Maximum Internal Volume Number 1024
Maximum iSCSI Target Number 128
Maximum iSCSI LUN 512
iSCSI LUN Clone/Snapshot, Windows ODX
RAID Group
Supported RAID Type
RAID F1
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID Migration
Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs
RAID F1
RAID 1
RAID 5
RAID 6
Volume Expansion by Adding a HDD
RAID F1
RAID 5
RAID 6
JBOD
Global Hot Spare Supported RAID Type
RAID F1
RAID 1
RAID 5
RAID 6
RAID 10
SSD Support
SSD Read/Write Cache (White Paper)
SSD TRIM
File Sharing Capacity
Maximum Local User Accounts 16000
Maximum Local Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 32
Maximum Concurrent CIFS/AFP/FTP Connections 2048
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Log Center
Syslog Events per Second 3000
Virtualization
VMware vSphere 6 with VAAI
Windows Server 2012
Windows Server 2012 R2
Citrix Ready
OpenStack
Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users 1600
Notes
The number of concurrent HTTP connections for Chat was configured to the maximum.
CPU and RAM usage were both under 80% when testing the recommended number of clients.
For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Concurrent File Transfers 2000
Maximum Concurrent File Transfers (with RAM expansion) 10000
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80
exFAT Access (optional)
HiDrive Backup
MailPlus / MailPlus Server
Free Email Accounts 5 (Licenses required for additional accounts)
Recommended MailPlus Client Number Up to 800 (Btrfs) / 900 (EXT4)
Maximum Server Performance 3,618,000 (Btrfs) / 2,738,000 (EXT4) emails per day, approx. 110.4 GB (Btrfs) / 83.6 GB (EXT4)
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 Compliance
Office
Maximum Users 1600
Maximum Simultaneous Editing Users 100
Notes
CPU and RAM usage were both under 80% when testing the recommended number of clients.
For tested models with expandable memory, the maximum amount of RAM was installed.
Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
PetaSpace
Snapshot Replication
Maximum Snapshots per Shared Folder 1024
Maximum Snapshots of all Shared Folder 65536
Surveillance Station
Maximum IP cam (Licenses required) 90 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)* 2700 FPS @ 720p (1280x720)
2250 FPS @ 1080p (1920×1080)
900 FPS @ 3M (2048x1536)
800 FPS @ 5M (2591x1944)
Total FPS (MJPEG)* 1200 FPS @ 720p (1280x720)
600 FPS @ 1080p (1920×1080)
350 FPS @ 3M (2048x1536)
220 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 Group 1 - Type 2 (See more)
Maximum Transcoding Channel Number 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
VPN Server
Maximum Connections 30
Environment & Packaging
Environment RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 2
Quick Installation Guide X 1
Optional Accessories
Surveillance Device License Pack
8GB DDR4 ECC UDIMM
16GB DDR4 ECC UDIMM
Expansion Unit: RX1217/RX1217RP X 2
VS360HD
Synology RKS1317 - Rail Kit Sliding
Synology Ethernet Adapter E10G15-F1
Synology Ethernet Adapter E10G17-F2

Designed to meet tomorrow's intensive storage requirements, Synology RackStation RS4017xs+ provides reliable, high-performance network attached storage for enterprises seeking rock-solid stability along withbusiness collaboration applications and virtualization acceleration. With up to 40 drive scalability, RS4017xs+ simplifies data management with minimal time investment required for setup and maintenance. SynologyRS4017xs+ is backed by Synology's 5-year limited warranty.
⚫Model backed with Synology Replacement Service (SRS) - Conditions apply. Refer to the Synology Website
⚫3U chassis and 16 drive trays design to provide high storage density
⚫Ultra-high performance of over 4,900 MB/s sequential read throughput and 690,000 sequential read IOPS
⚫Intel Xeon D-1541 8-core CPU and 8GB (up to 64GB) DDR4 ECC UDIMM
⚫Dual 10GBase-T ports and optional 10GbE NICs support, providing up to 6 x 10GbE ports for maximum performance throughput
⚫Scale up to 40 drives with 2 x Synology RX1217/RX1217RP
⚫Complete virtualization solution for VMware, Citrix, Microsoft Hyper-V, and OpenStack
⚫Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder
⚫Maximum IP camera: 90 (total of 2,700 FPS at 720p, H.264) (Includes two free camera licenses, additional cameras require the purchasing of additional licenses)
⚫LAN - 2 x 10GbE RJ45 (10GBase-T) , 4 x 1GbE RJ45
⚫PCIe 3.0 slot - 2 x 8-lane x8 slot , High-performance network interface card support
⚫Size (HxWxD) - 132.3 x 430.5 x 624.5 mm // 132.3 x 482 x 656.5 mm (with server ears) - 3U RACK