CPU
CPU Model : Intel Xeon D-1521
CPU Architecture : 64-bit
CPU Frequency : Quad Core 2.4 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine : Yes

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) : 12
Maximum Drive Bays with Expansion Unit : 36
Compatible Drive Type : 3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity : 120 TB (10 TB HDD x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units : 360 TB (10 TB HDD x 36) (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 : Yes

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

Others
RJ-45 1GbE LAN Port : 4 (with Link Aggregation / Failover support)
Wake on LAN/WAN : Yes
PCIe Slot for Network Card : 2 x Gen3 x8 slots (x8 link)
System Fan : 80 mm x 80 mm x 4 pcs
Fan Speed Mode : Full-Speed Mode, Cool Mode, Quiet Mode
Easy Replacement System Fan : Yes
Wireless Support (dongle) : Yes
Power Recovery : Yes
Noise Level : 50.2 dB(A)
Scheduled Power On/Off : Yes
Power Supply Unit / Adapter : 2 X 500W
AC Input Power Voltage : 100V to 240V AC
Power Frequency : 50/60 Hz, Single Phase
Power Consumption : 116.42 W (Access)
65.49 W (HDD Hibernation)
British Thermal Unit : 397.24 BTU/hr (Access)
223.46 BTU/hr (HDD Hibernation)
Redundant Power Supply (for xs+ and RP model) : Yes

Environment Temperature
Operating Temperature : 5^oC to 35^oC (40^oF to 95^oF)
Storage Temperature : -20^oC to 60^oC (-5^oF to 140^oF)
Relative Humidity : 5% to 95% RH

Certification
FCC Class A
CE Class A
BSMI Class A

Storage Management
Maximum Internal Volume Number : 1024
Maximum iSCSI Target Number : 64
Maximum iSCSI LUN : 512
iSCSI LUN Clone/Snapshot, Windows ODX : Yes
RAID Group : Yes
Supported RAID Type : Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID Migration : Basic to RAID 1
Basic to RAID 5
Basic to RAID 6
Basic to RAID 10
Volume Expansion with Larger HDDs : RAID 1
RAID 5
RAID 6
Volume Expansion by Adding a HDD : RAID 5
RAID 6
JBOD
Global Hot Spare Supported RAID Type : RAID 1
RAID 5
RAID 6
RAID 10

SSD Support
SSD Read/Write Cache : Yes
CESSD TRIM : Yes

File Sharing Capacity
Maximum User Accounts : 16000
Maximum Groups : 512
Maximum Shared Folder : 512
Maximum Shared Folder Sync Tasks : 16
Maximum Concurrent CIFS/AFP/FTP Connections : 2048
Windows Access Control List (ACL) Integration : Yes
NFS Kerberos Authentication : Yes
Log Center : Yes
Syslog Events per Second : 3000

Virtualization
VMware vSphere 6 with VAAI : Yes
Windows Server 2012 : Yes
Windows Server 2012 R2 : Yes
Citrix Ready : Yes

Maximum Concurrent File Transfers
2000

Maximum Concurrent File Transfers(with RAM expansion)
10000

Maximum Docker DSM Number (Licenses required)
35 (including 1 Free License)

Maximum Concurrent Download Tasks
80

exFAT Access (optional)
Yes

HiDrive Backup
Yes

MailPlus / MailPlus Server
Yes
Free Email Accounts : 5
Recommended MailPlus Client Number : Up to 300 (Btrfs) / 400 (EXT4)
Maximum Server Performance : 2,248,000 (Btrfs) / 2,184,000 (EXT4) emails per day, approx. 68.8 GB (Btrfs) / 66.7 GB (EXT4)

Media Server
Yes
DLNA Compliance : Yes